64 is 4 times the difference between Sarah's age, a, and 44. Assume Sarah is older than 44.

Write an equation to determine Sarah's age (a).

Find Sarah's age.

Answer:

2 real solutions

Step-by-step explanation:

d>0: two real solutions

D=0 one real solution

D<0: two complex (imaginary) solutions

Answer:

Step-by-step explanation:

This is a quadratic equation.  All quadratic equations have two solutions.  In this case, with d > 0, the two solutions / roots are real, one positive and one negative.  To see this, take the square root of both sides of x² = d.

Answer:

1. = 7.5

2. = 8 inches

3. =  x=3

Step-by-step explanation:

1) 7.5 miles north-east

2) 8 cubic inches

3) x = 6.24

Step-by-step explanation:

1) Use pythagorus thereom:

a² + b² = c²

4.5² + 6² = c²

20.25 + 36 = c²

c = √56.25

c = 7.5

7.5 miles north-east

2) The ice is a cube,

Surface area = 24

Cube has 6 sides

24 / 6 = 4

1 side = 4

1 length = √4

1 length = 2

Volume = bhd

Volume = 2³

Volume = 8 in.³

3) ⅓x³ = 9

⅓x = (3√)9

⅓x = 2.08

x = 2.08 / ⅓

x = 6.24

Answer:

y = 1/2x + 2

*view the attached graph to double check the answer*

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

y = mx + b

y = 1/2x + b

(2, 3) ==> substitute the numbers into the equation

y = 1/2x + b

3 = 1/2(2) + b

3 = 1 + b

-1   -1

2 = b

Our final equation: y = 1/2x + 2

Check your answer using (2, 3):

y = 1/2x + 2

3 = 1/2(2) + 2

3 = 1 + 2

3 = 3

This statement is correct

Hope this helps!

Answer:

12

Step-by-step explanation:

if we know we want a profit of at least 114, we need to solve for x.

if we put 12 for x we get the answer 117 and when we put 11 for x we get less than 114.

-0.5(12)^2 + 25(12)-111 = 117

Answer:

1.2 cm

Step-by-step explanation:

3/5, in decimal form, is 0.6.

You find the diameter by multiplying the radius by 2.

0.6 * 2 = 1.2

Answer:

1 1/5 or 1.2

Step-by-step explanation:

You multiply the radius (the number in the picture) by two, because the diameter is twice the radius

hope that helps

Answer:

c) (-3s) - 9

Step-by-step explanation:

(-5s) + 2s - 9

-5s + 2s - 9 <== combine like terms

-3s - 9

Therefore, our answer is c.

Hope this helps!

Answer:

the answer is C.

Step-by-step explanation:

Start by combining like terms (-5s) and 2s= (-3s)

You can't subtract 9 from this because they aren't like terms.

(-3s) -9

Answer:

The answer is 357

Step-by-step explanation:

we are asked that of we find 420% of 85 ,then what we ate looking for.that is,we need to find 420% of 85. Thus we are looking for 357.

Answer :D

8 [tex]\frac{2}{3}[/tex] (8 2/3)

Question explanation:

5 [tex]\frac{3}{4}[/tex] +  2 [tex]\frac{11}{12}[/tex] = [tex]\frac{26}{3}[/tex] = 8 [tex]\frac{2}{3}[/tex]

(5 3/4) + (2 11/12) = (26/3) = (8 2/3)

(5 + 2) + ( [tex]\frac{3}{4}[/tex] + [tex]\frac{11}{12}[/tex] )

(5 + 2) + (3/4 + 11/12)

7 + 3 x 3 + [tex]\frac{11}{12}[/tex]

   (4 x 3)  (11/12)

7 + [tex]\frac{9}{12}[/tex] + [tex]\frac{11}{12}[/tex]

(9/12) + (11/12)

7 + 9 + 11

      (12)

7 + [tex]\frac{20}{12}[/tex]

(7 + 20/12)

7 + (20 ÷ 4)

     (12 ÷ 4)

7 + [tex]\frac{5}{3}[/tex]

(5/3)

7 + 1 [tex]\frac{2}{3}[/tex]  

( 1 2/3)

= 8 [tex]\frac{2}{3}[/tex]

 (8 2/3)

8 [tex]\frac{2}{3}[/tex] = [tex]\frac{26}{3}[/tex] = 8 [tex]\frac{2}{3}[/tex]

(8 2/3) (26/3) (8 2/3)

I hope this finds you well - Answered by Lilo

We're given:

Let a represent the number of children who swam.

Let b represent the number of adults who swam.

Because we've set two variables, we need two equations to be able to find the answers.

One of the equations will regard price while the other will regard the number of people, as those are the two things given in the question.

Number of people:

[tex]a+b=478[/tex]

Price:

[tex]1.75a+2.25b=975[/tex]

We can solve this question using substitution, where we plug one equation into the other.

Isolate a in the first equation:

[tex]a+b=478\\a=478-b[/tex]

Plug the first equation into the second equation by replacing a:

[tex]1.75a+2.25b=975\\1.75(478-b)+2.25b=975[/tex]

Solve for b:

[tex]1.75(478-b)+2.25b=975[/tex]

⇒ Open up the parentheses:

[tex]836.5-1.75b+2.25b=975\\836.5-0.5b=975[/tex]

⇒ Subtract 836.5 from both sides to isolate b:

[tex]-0.5b=138.5[/tex]

⇒ Divide both sides by -0.5:

[tex]b=277[/tex]

Solve for a:

[tex]a+b=478[/tex]

⇒ Replace b with 277:

[tex]a+277=478\\a=201[/tex]

There were 201 children and 277 children at the pool that day.

Answer:

e

Step-by-step explanation:

Central tendency means “the statistical measure that identifies a single value as representative of an entire distribution." These measures include mean, median, and mode.

Andrew scores 79, 86, 63, and 82 on his tests.

63, 79, 82, 86

Mean: 79 + 86 + 63 + 82 = 77.5 or

Median: 79 + 82 = 80.5

(you have to add these numbers bc there is no exact median as none are repeating)

Mode: There is no exact mode since there is no repeating numbers.

He should use the mean bc the mean is a pretty good number.

I'm not sure if you would want to tell your mother that you're barely getting an average. or higher than failing.

either way, hope this helps :)

Answer:

20%

Step-by-step explanation:

so he made a total of 70 bowling attempts, and 14 out of those 70 he actually knocked all of the pins down, so what its asking, is what is 14 precent of 70 because the wording is "out of" which means its a part of the entire 70. so you now know what its asking, how do you solve it? well, you would divide 14 by 70 to get the answer in decimal form: 14 / 70 = 0.2000 Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage: 0.2000 * 100 = 20.00%

Answer:

B

Step-by-step explanation:

175+(-16) is the same as 175-16, because you can carry the negative. 175-16=159, which is B.

Answer:

all students in the club

Step-by-step explanation:

Answer:

C. All students in each grade

Step-by-step explanation:

Answer choices A and B are the worst choices to represent all students in the school. D can also be crossed off because students in the social studies club would most likely have a biased answer. Surveying all students in each grade produces the most random, unbiased results, so C would be the best answer.

Hope this helps!

Answer:

First, set up equations for total cost for both Happy Paws and Woof Watchers.

x= number of hours

y= total cost

Happy Paws

y=3.50x +16

Woof Watchers

y=4.75x+11

4.75x+11=3.50x+16

x=4

You can check your answer by doing the following:

Happy Paws: (3.50)(4)+16= 30

Woof Watchers: (4.75)(4)+11= 30

Step-by-step explanation:

Answer:

10 units for the perimeter

6 square units for the Area

Step-by-step explanation:

May I get brainlest if I get this right.

Answer: Perimeter is 10

Area is 6

Step-by-step explanation:

add all the squares around the blue squares for perimeter

Add the blue squares for area

Answer:

do 60 times 5 puls540 and 12

Step-by-step explanation:

i think i am wrong but i am right i think

Answer:

2

Step-by-step explanation:

5 has 2 siblings it's number 5

Hello !

[tex]\huge \pmb {\boxed {\frak{Proof \: is \: shown \: below :}}}[/tex]

Your answer is B.

Hopefully This Helps ! ~

#LearnWithBrainly

[tex]\underline{Answer :}[/tex]

Dollixna ~

The given inequality y < -4 is shown in the attached graph. The correct answer would be an option (B).

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

Inequalities with "< or > "symbols are shown with a dashed line to indicate that the line is not inside the area. Inequalities involving symbols are depicted with a solid line to indicate that the line is included in the region.

We have been the given inequality y < -4

Rearrange the equation such that "y" is on the left and all other variables are on the right.

Plot the "y=" line (a solid line for y or y, and a dashed line for y or y>). The shade above the line for a "greater than" (y> or y), or below the line for a "less than" (y or y).

Hence, the given inequality y < -4 is have shown in the attached graph.

Learn more about the inequalities here:

brainly.com/question/20383699

#SPJ2

Answer:

4/9

Step-by-step explanation:

need more words to send

Answer:

Step-by-step explanation:

There are at least 2 ways you could do this. The best way is to use algebra. The trick is to equate 0.444444 to x, and then create a second equation by multiplying the first equation by 10. In doing this, you can subtract the two equations and that will get rid of the decimal.

10x = 4.444444...

  x =    .444444...             Now subtract these 2 equation

9x = 4                               Divide both sides by 9

9x/9 = 4/9

x = 4/9.

Since you are given choices, you could put each one into your calculator.

1/9 = 0,111111 not the answer.

40 /99 = 0.40404040 which is close but not the answer.

4 / 99 = 0.040404 ... which again is close but not the answer.

Answer:

18.8

Step-by-step explanation:

multiply pi by the diameter (6 cm) and you get the circumference

hope that helps

Answer:

[tex]6 / \pi = 1.91[/tex] ≈ [tex]2\pi r = 2 * \pi * 6[/tex] ≈ [tex]37.69~nearest~hundredth[/tex]

Hope it helps and hope it's right.

2) Find the area of a parallelogram with a height of 8 inches and a base of 14 inches.

A=bh=14·8=112in²

3) Find the surface Area of the rectangular prism with a length of 15 cm, height of 7 cm, and width of 5 cm.

A=2(wl+hl+hw)=2·(5·15+7·15+7·5)=430cm²

4) Find the volume of the following figure:

[tex]V=\frac{lwh}{3} =\frac{16*8*9}{3} =384[/tex]

5) You are wrapping a cube shape present that is 9 inches tall. How much wrapping paper will you need to wrap the entire present.

SA = [tex]l*w*h[/tex] = 9x9x9 = 729in²

6) A truck has a trailer that has a length of 13ft, a width of 6ft, and a height of 8ft. What is the volume of the trailer?

[tex]V=whl=6*8*13=624[/tex]

----------------------------------------------------------------------------------------------------------

"The beautiful thing about learning is that no one can take it away from YOU"

B.B.King

Step-by-step explanation:

Find the area of a parallelogram then the surface Area of the rectangular prism

THAT IS=

A=2(wl+hl+hw)=2·(5·15+7·15+7·5)=430cm sq. Find the volume of the following figure: then the amount of paper for the present. A =  = 9x9x9 = 729in sq.  then

Volume of truck: Volume=widthxhieghtxlength=6x8x13=624

If this was helpful please give a thank you and a brainliest

Answer:

10

Step-by-step explanation:

Because the greatest was 15 and the least was 5. So 15-5=10. Hope this helps <3

Answer:

x = 13

Step-by-step explanation:

Using the 48° angle, we find out that the angle opposite of angle y° is also 48° according to the corresponding angles theorem. Then, you would subtract 48 from 180 to get the degrees of angle y, which would be 132°. Next, you need to subtract 132 from 180 to get the angle measure of the (5x - 17)° angle. (180 - 132 = 48) Once you have done that, all you have to do now is figure out what value of x makes it equal to the degree measure you found by subtracting 132 from 180. I tried it with x = 13, which came out as a correct answer. So x must be 13.

(5x - 17)°

(5(13) - 17)°

(65 - 17)°

(48)°

48°

The angle equals 48° and x equals 13.

=19 × 15

= 19×7