A math test has two parts. Both parts have the same number of questions. Rachael answered 2/3 of the questions correctly in the first part of the test, but she only answered 1/2 of the questions correctly in the second part of the test. Overall, she answered 21 questions correctly. What is the total number of questions on the test?

Answers

Answer 1

Answer:

Step-by-step explanation:

21=1/2 so if thats 21 the answer would be 2/3=34


Related Questions

Find the area of the circle. Leave your answer in terms of pi

Answers

Answer:

Step-by-step explanation:

Since area of a circle is pi.r^2

We know that diameter is 20

Radius is half of diameter

So it becomes

Pi.(d/2)^2

So pi.(40/4) is the area of this circle.

Or 40pi/4

Answer:

100π

Step-by-step explanation:

The formula for calculating area of a circle π×r^2 (r: radius)

The given radius here is 20 ÷ 2 = 10

π × 10^2 = 100π

A triangle has a base of 15 feet and a height of 9.5 feet. What is the area of the triangle?
O 142.5 ft2
O 71.25 ft2
O 24.5 ft2
O 5.5 ft2
HELP ASAP

Answers

Answer:

71.25 ft2

Hope this helps. Pls give brainliest.

Answer:

71.25

Step-by-step explanation:

multiply them together then divide by 2.

Three baseball players are playing catch. Herman is 6 meters south of Luca and 8 meters west of valentina. How far does Luca need to throw the ball to get it to Valentina

Answers

Answer:

Luca needs to throw the ball 10 meters to get to Valentina.

Step-by-step explanation:

Distance Between two Points in the Plane

Let's assume Luca is at the origin of coordinates (0,0).

Since Herman is 6 meters south of Luca, he is located at (0,-8).

We also know Herman is 8 meters west of Valentina, or equivalently, Valentina is 8 meters east of Herman. This locates Valentina at (6,-8).

If Luca wanted to throw the ball to Valentina, he would need to cover the distance between them.

Thus the problem reduces to find the distance between (0,0) and (6,-8).

Given two points A(x,y) and B(w,z), the distance between them is:

[tex]d=\sqrt{(z-y)^2+(w-x)^2}[/tex]

Applying the formula:

[tex]d=\sqrt{(-8-0)^2+(6-0)^2}[/tex]

[tex]d=\sqrt{(-8)^2+(6)^2}[/tex]

[tex]d=\sqrt{64+36}=\sqrt{100}=10[/tex]

d=10 m

Luca needs to throw the ball 10 meters to get to Valentina.

Please PLS PLS PLS PLS Answer ASAP its a test PLEASE will give brainliest if right!! :)

Answers

Answer:

1

Step-by-step explanation:

18 is the correct answer:)


What is the surface area
1 cm
5 cm
4 cm
2 cm
6 cm
3 cm

Answers

I worked it out, the answer is 88

Rachel got her kite stuck at the top of a tree that is 35 feet tall. If she is standing 55 feet away from the base of the tree, how long is the string?

Answers

Answer:

90

Step-by-step explanation:

Just add 35 and 55 it's pretty simple

Solve the following equation for x: 2x + 5y = 8.
x= 5/2y + 4
x=-5/2y - 4
x=5/2y - 4
x=-5/2Y +4

Answers

The answer would be the bottom one because it would be 5 over negative 2x so it would be a negative fraction and then the 8 is positive and divide that by two and you get 4

Ellen wants to purchase a book that is regularly priced at $18. The book is discounted 15%. She also needs to pay a 6% sales tax on the discounted price.

What is the total amount Ellen will pay for the book?

Answers

Answer:

Ellen will pay $16.22 for the book.

Step-by-step explanation:

Part 1:

We know that the book Ellen wants to buy has a normal price of $18. However, there is a 15% discount. So, let's calculate 15% of $18.

18 x 0.15 = $2.70

This lets us know that there is a $2.70 discount.

Now, let's subtract the discount from the regular price.

18 - 2.70 = $15.30

So, now we know the discounted price is $15.30

Part 2:

We also know that Ellen has to pay 6% sales tax. The discounted price is 100% of the price, plus 6% is 106%. Let's calculate the tax to figure out the total amount.

15.30 x 1.06 = $16.22 when rounded to the nearest cent.

Therefore, Ellen will pay the total amount of $16.22.

Answer:

$16.22

Step-by-step explanation:

marked price        =  $18    = 100%

discount                = $?       = 15%

selling price/         =  $?      = 85%        

discounted price- this price is lower than the marked price as they have given you a DISCOUNT- an amount of money DEDUCTED.(a.k.a selling price)

selling price  =  85%  x   $18     =   $15.3= discounted price

                                 100%

sales tax=6%

=   6 x 15.3     =  0.918 =   $0.92=sales tax

       100

total amount = discounted price + sales tax

                     =  15.3  +  0.92

                      =  $16.22

Solve for x.
-3/5x = 15
A. -25
B. -9
C. -6
D. 9

Answers

Answer: If the question is formed as (- 3/5) x = 15

then A is correct

X=-25

Step-by-step explanation:

wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink  wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink wink

Si 5 trabajadores realizan el 60% del muro en el dia, y los demas trabajan en partes iguales. ¿Que porcentaje del muro construyen los demas trabajadores?

Answers

Answer:

40%

Step-by-step explanation:

Aquí, tuvimos que 5 trabajadores habían terminado el 60% del muro.

Entonces, el porcentaje que queda por hacer sería el porcentaje total, el porcentaje realizado por los 5 trabajadores.

Matemáticamente, el porcentaje total será del 100%.

Entonces, el porcentaje total realizado por los trabajadores restantes será 100% - 60% = 40%

Which number is between 6 1/8 and 64 squared?

Select one:

a.7 1/2

b. 68 squared

c. 8.16...

d. 0.115

Answers

Answer:

Do you have a photo or picture of this question, I don't want to give you the incorrect answer because something was missing.

If f(x)=4x-16andtheDomainis{-2,-1,0,3,6},findtheRange of the function. Show all work.

Answers

Answer:

R={-24,-20, -16, -4, 8}

Step-by-step explanation:

f(x)=4x-16

f(-2)=4(-2)-16

f(-2)=-8-16

f(-2)=-24

f(x)=4x-16

f(-1)=4(-1)-16

f(-1)=-4-16

f(-1)=-20

f(x)=4x-16

f(0)=4(0)-16

f(0)=0-16

f(0)=-16

f(x)=4x-16

f(3)=4(3)-16

f(3)=12-16

f(3)=-4

f(x)=4x-16

f(6)=4(6)-16

f(6)=24-16

f(6)=8

After cleaning house, Josh took a box of 29 used discs to sell at the flea market.
Some were computer games (which he sold for $2 each), some were music CDs (which he sold
for $3 each), and the rest were video DVDs (which he sold for $4 each). If Josh sold everything
(which included twice as many DVDs as computer games), and he made a total of $93, how
many of each type of disc did he sell?

Answers

Answer:

Josh sold, 6 computer games, 12 video DVDs, and 11 music CDs

Step-by-step explanation:

The given parameters are;

The number of used discs in the box Josh took to the flea market = 29

The price for which he sold the computer games = $2

The price for which he sold the music CDs = $3

The price for which he sold the video DVDs = $4

The number of DVDs = 2 × The number of computer games

The total amount Josh made = $93

Let C represent the number of computer games and let M represent the number of music CDs, and let V represent the number of DVDs, we have;

We have;

V = 2 × C...(1)

C + M + V = 29...(2)

2 × C + 3 × M + 4 × V = 93...(3)

By substituting the value of V, from equation (1), in equation (2), we have ;

C + M + (2 × C) = 29

∴ 3·C + M = 29

M = 29 - 3·C...(4)

By substituting the value of V, from equation (1) and the value of M, from equation (4) in equation (3), we have;

2 × C + 3 × M + 4 × V = 93...(3)

2·C + 3·M + 4·V = 93

2·C + 3·(29 - 3·C) + 4·(2·C) = 93

2·C + 87 - 9·C + 8·C = 93

C = 93 - 87 = 6

C = 6

The number of computer games = C = 6

V = 2 × C = 2 × 6 = 12

V = 12

The number of video DVDs = V = 12

M = 29 - 3·C = 29 - 3 × 6 = 11

M = 11

The number of music CDs = M = 11

Therefore, Josh sold, 6 computer games, 12 video DVDs, and 11 music CDs.

Evaluate: 3x^2 + y when x=1 and y=-3

Answers

Answer:

0

Step-by-step explanation:

3x^2 + y ( If x = 1, and y = -3)

= 3(1)^2 + (-3)

= 3 + -3

= 0

Cheers.

Blue Skies Equipment Company uses the aging approach to estimate bad debt expense at the end of each accounting year. Credit sales occur frequently on terms n/60. The balance of each account receivable is aged on the basis of three time periods as follows: (1) not yet due, (2) up to one year past due, and (3) more than one year past due. Experience has shown that for each age group, the average loss rate on the amount of the receivable at year-end due to uncollectibility is (a) 3 percent, (b) 9 percent, and (c) 28 percent, respectively. At December 31, 2019 (end of the current accounting year), the Accounts Receivable balance was $48,700 and the Allowance for Doubtful Accounts balance was $920 (credit). In determining which accounts have been paid, the company applies collections to the oldest sales first. To simplify, only five customer accounts are used; the details of each on December 31, 2019, follow:

Answers

Answer:

hello your question is incomplete attached below is the missing table

answer = $48700

Step-by-step explanation:

Calculate the total account receivable in each age category

1) not yet due age category

 = $4000 + $4000 + $7000

 = $15000

2) up to 1 year age category

  = $20500 + $7000

  = $27500

3) more than 1 year age category

  = $6200

therefore the total amount of  account receivables =  15000 + 27500 + 6200  = $48700

What is the hypothesis of the following conditional statement? Conditional Statement: If a triangle has three congruent sides, then it is an equilateral triangle.

A.) The triangle has three sides.
B.) If it is an equilateral triangle, it has three congruent sides.
C.) It is an equilateral triangle.
D.) A triangle has three congruent sides.

Answers

Answer: D.) A triangle has three congruent sides.

Step-by-step explanation: The first part of a conditional statement is its hypothesis.

Explain how to use a polynomial identity to factor x^6-27y^3

Answers

This is a sum of cubes:

x⁶ - 27y³ = (x²)³ + (-3y

Recall that

a³ + b³ = (a + b) (a² - ab + b²)

So we have

x⁶ - 27y³ = (x² - 3y) ((x²)² - x² (-3y) + (-3y)²)

x⁶ - 27y³ = (x² - 3y) (x⁴ + 3x²y + 9y²)

Dont really no sorry

Breadth and length of a rectangle is in the ratio 7:11. Length is 20 cm
more than breadth. Find the breadth and length.

Answers

Answer:

Breadth = 35 cm

Length  = 55 cm

Step-by-step explanation:

Breadth : length = 7 : 11

Breadth = 7x

Length  = 11x

Length is 20 cm  more than breadth.

Length = breadth + 20

   11x    = 7x + 20

11x - 7x = 20

      4x = 20

x = 20/4

x = 5

Breadth = 7x  = 7*5 = 35 cm

Length  = 11x  = 11 * 5 = 55 cm

❥ Question -:

Breadth and length of a rectangle is in the ratio 7:11. Length is 20 cm more than breadth. Find the breadth and length.

❥ Explanation -:

In this question we are provided with the ratio of length and breadth 7 : 11 and it is also given that the length of the rectangle is 20 cm more than the breadth and we are asked to find out the length and breadth

Let us assume length as 11x and breadth as 7x.

[tex] \small\underline{\frak{ Length \: is \: 20 \: cm \: more \: than \: breadth}}[/tex]

Length = Breadth +20

According To Question

[tex] \small\bf{ 11x = 7x + 20}[/tex]

[tex] \small\rm{11x - 7x = 20} [/tex]

[tex] \small\rm{4x = 20} [/tex]

[tex] \small\rm{ x = \cancel\dfrac{20}{4} = 5 }[/tex]

[tex]\small\boxed{\rm{x = 5 cm}}[/tex]

Length = 11x = 11 × 5 = 55 cm

Breadth = 7x = 7 × 5 = 35 cm

Refer to the spinner. Find p ( even and not shaded )
• 1/3
•1/6
•5/6

Answers

Answer:

1/6

Step-by-step explanation:

p is even and not shaded

2 fractions are not shaded: 1/3 and 1/6

1/3 is not even, it's odd

1/6 is the only remaining answer

A landscape can buy sod at a discounted price from the local hardware store.If she can buy a length of sod on sale for $7, what is the original price of the sod if he pay 50% off original price

Answers

Answer:

$14

Step-by-step explanation:

Step one:

given data

we are told that the discounted price is $7

and the applied discount is 50%

so if 50% of the original price is $7

Step two:

let the original price be x

50/100*x=7

0.5x=7

divide both sides by 0.5

x=7/0.5

x=$14

These means that the original price is $14

HELP MEH!!! question:
A snail travels 10cm in 4 minutes. at this rate:

Answers

Answer:

In 8 min it will travel 20

Step-by-step explanation:

PLEASE ANSWER THIS ASAP !!!!!

Answers

Answer:

y= -3x-6

Step-by-step explanation:

Find the quotient: 16.4 m ÷ 2.82 m.

Answers

Answer:

5.8156

Step-by-step explanation:

The division is super long, took me a while to solve on paper, but the answer is 5.8156.

Hope this helped! :)

Nadia has 3/5 a yard of fabric. If Nadia cuts the fabric into 2 equal
pieces, how long are each of the 2 sections?
(The picture has the answer) :)

Answers

Answer:

A. [tex]\frac{3}{10}[/tex] a yard

Step-by-step explanation:

We just need to divide the [tex]\frac{3}{5}[/tex]yard fabric into 2:

[tex]\frac{3}{5}[/tex]÷[tex]\frac{2}{1}[/tex] = [tex]\frac{3}{5}[/tex]×[tex]\frac{1}{2}[/tex]

     = [tex]\frac{3}{10}[/tex]

Please help. how do I do this??

Answers

Answer:David

Step-by-step explanation:

David saves 2:8 = 1;4 is 25%

Laura saves 3/20= 15%

Anna saves 19%

Evaluate the expression for the given value of the variable
3x + 5 when x = 5

Answers

Answer:

Step-by-step explanation:

Putting value of x in the equation

3(5) + 5

= 15 + 5

= 20

answer :
3(5) + 5
15 + 5
20

f(x)=−14x+12 for x=3?

Answers

Answer:

(x)=-30

Step-by-step explanation:

f(x)=-14·3+12

f(x)=-42+12

f(x)=-30

-30 cus if u plus in 3 for x u get -30

What is 2/5 closer to

Answers

Answer:

Depends on what it is

Step-by-step explanation:

I can't tell you because I don't know what we are comparing. :)

Endless pain.............................

Answers

Answer:

Ok

Step-by-step explanation:

Do you like ice cream?

Because I do :D

Answer:

just these two words make so much sense that i can relate to it.

Step-by-step explanation:

i can't say the pain will end but looking forward to good things really help me and others.

anyways have a good day.

:)

comment if you have depression and anxiety and understand these two words. lol

-2/3 -5x
What is the slope of the line represented by the equation y

Answers

Step-by-step explanation:

y = -2/3 - 5x

rearranging,

y = -5x -2/3

comparing to the gradient-intercept equation

y = mx + c

m = -5

c = -2/3

Therefore, the slope of the line is -5

Answer: -5

Step-by-step explanation:

Because you know that y=Mx+p right?

So you just take the equation : -2/3-5x and you know that the number before x is m = the slope . Have a nice rest of your day :)

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