Solve the system of equations - 2x + 2y = 28 and - 2x - 3y = - 17by combining the equations .​

Answers

Answer 1

Answer:

4x + 5y= 11

Step-by-step explanation:

2x+2x= 4x

2y+(-3y)=1y

28+(-17)=11


Related Questions


Write an equation for g(x), a translation of f(x) 4 units to the right and 3 units down.
A. g(x) = f(x + 4) + 3
B. g(x) = f(x + 4) - 3
C. g(x) = f(x - 4) - 3.
D. g(x) = f(x – 4) + 3

Answers

I’m pretty sure it’s c) I’m sorry if it’s wrong :)

3. If A = 6x^2 - x^2 + 4x + 8 and B = 2x^3 + x - 5 then A - B equals

(1) 4x3 - x2 + 3x – 13
(2) 8x3 - x2 + 5x + 3
(3) 4x3 – x2 + 3x + 13
(4) 8x3 + 3x + 3​

Answers

Hi there!

[tex]\large\boxed{(3) \text{ } 4x^{3} - x^{2} + 3x + 13}[/tex]

Given:

A = 6x³ - x² + 4x + 8

B = 2x³ + x - 5

Find A - B by subtracting the two equations. Subtract like-terms:

6x³ - x² + 4x + 8 - (2x³ + x - 5)

Simplify:

6x³ - x² + 4x + 8 - 2x³ - x + 5 =

4x³ - x² + 3x + 13. The correct choice is 3.

Larry was paid a total of $30 for raking leaves for 8 hours of work. This rate is constant. What will be the total amount that Larry will be paid for raking leaves for 20 hours of work

Answers

Answer:

Hi! The correct answer is $75 for 20 hours.

Step-by-step explanation:

What is the equation of a line through (6, 8) and (3,-1)
in slope intercept form y=mx+b?

Answers

The answer is y=3x-10

A soccer team orders jerseys that cost $20 each. The price per jersey decreases $0.50 for each jersey that is ordered. How many jerseys should the team order for the price per jersey to be no greater than $15?

Answers

Answer:

10 jerseys :)))

twice a number is equal to six more than three times the number. write into equation

Answers

Answer:

2x = 3x + 6

Step-by-step explanation:

Key skills: Writing Out Equations

1) Let's say x is the number.

2) Twice the number means 2 times the number. This means it would be 2x.

3) 3 times a number is 3x. 6 more than that would be using addition, so it would be 3x + 6.

4) Therefore your answer would be 2x = 3x + 6

Hope you understood and have a nice day!!

Maggie's goal was to collect 80 canned goods foſ a food drive. So far,
she has collected 60 cans. What percent of her goal did Maggie reach?

A. 60%
B. 65%
C. 70%
D. 75%

Answers

Answer:

the percentage of 60/80 is 75

-b-2>8

Pls help me! I’m really confused

Answers

Answer:

b<−10

Step-by-step explanation:

Answer:

b<-10

Step-by-step explanation:

Inequality: -b-2>8

Step 1: Add 2 to both sides

-b-2+2>8+2

-b>10

Step 2: Divide both sides by -1

-b > 10

_      _

-1     -1

b<-10

Hope this helps you!!!!

please help ASAP 25 pts + brainliest, please show or explain answer

Answers

Answer:

B. .60

Step-by-step explanation:

With reference angle A

perpendicular (p) = 6

hypotenuse (h) = 10

Then

Sin A

= p/h

= 6 / 10

= 0.6

Answer:

Option B

Step-by-step explanation:

We know that

[tex] \sin( \alpha ) = \frac{side \: opposite \: to \: \alpha }{hypotenuse \: of \: triangle} [/tex]

where [tex] \ alpha [/tex] is an angle of a triangle.

In the triangle given above , [tex] \ alpha = angle A [/tex]. So,

[tex] \sin(a) = \frac{6}{10} = 0.60[/tex]

At Dizzy World theme park, Vera waited in line for 35 minutes and rode on a Magical Mushroom for 7 minutes. What is the percent value-added time for this ride

Answers

Answer: the percent value-added time for this ride is 16.67%

Step-by-step explanation:

 Given that;

Waiting time for Vera = 35 minutes

Length of Vera's ride = 7 minutes

total processed time will; ( 35 + 7 ) = 42 minutes

the percent value-added time for this ride = ?

so

Percentage value-added time of Vera will be

= (length of the ride / total process time) × 100

we substitute

⇒ (7 / 42) × 100

⇒ 0.16666 × 100

16.67%

Therefore the percent value-added time for this ride is 16.67%

4. Brett is fencing in a circular patio. The radius of the patio is 70 feet. How many linear feet of
fencing does he need to enclose the patio?

Answers

Answer:

The number of feet of fencing that he needs will be equal to the perimeter of the circular patio.

We know that the perimeter of a circle of radius R is equal to:

P = 2*pi*R

where pi = 3.14

Then if the radius of the patio is 70ft, the perimeter of the patio will be:

P = 2*3.14*70ft = 439.6 ft

Then he needs 439.6 ft of fencing to enclose the patio.

our friend can clap his hands 28 times in 12 seconds. How many times can your friend clap his hands in 1.75 minutes?

Answers

Answer:

245 times in 1.75 minutes.

Step-by-step explanation:

Hope this helps!!!

Can I have brainliest???

(ANSWER CORRECTLY PLS, ALSO EXPLAIN FOR BRAINLIEST)
Two companies rent canoes at Klein Lake. The first company charges a 12.50 deposit and a fee of $16 per hour. The second company charges a fee of $20 per hour with a deposit of $4.50. How many hours would a canoe need to be rented for the cost to be the same at each company?
A 32 hours
B 2 hours
C 4 1/2hours
D 8 hours

Answers

Answer:

D

Step-by-step explanDation:

If logx= -5, what is x?

Answers

Answer:

In Exact form: x = 1/100000

In Decimal form: 1 x 10^-5

Step-by-step explanation:

Answer:

0.00001

Step-by-step explanation:

What is the area of the triangle

Answers

Answer:

A = 1/2 l*w

So the answer is 4.

Answer:

area=1/2(bh)

area=1/2(2 times 4)

area=1/2(8)

area=4

:)

A rectangle has a length that is 4 meters more than the width. The area of the rectangle is 117 square meters. Find the dimensions of the rectangle.

Answer choices are on picture.

Answers

Answer:

Its the first choice. Width:9 Length:13

Step-by-step explanation:

If the length is 4 meter more than the width than that means whatever the width is you must add 4 to it, in this case the width is 9 so add 4 to it which equals 13. If the length matches your answer it is the correct choice.

The area of a rectangle is the product of its dimensions. The dimension of the rectangle is: [tex]Length = 13m[/tex] and [tex]Width = 9m[/tex]

Given that:

[tex]L =4 + W[/tex]

[tex]Area = 117[/tex]

The area of a rectangle is:

[tex]Area = L \times W[/tex]

So, we have:

[tex]L \times W= 117[/tex]

Substitute [tex]L =4 + W[/tex]

[tex](4 + W) \times W = 117[/tex]

Expand

[tex]4W + W^2 = 117[/tex]

Rewrite as:

[tex]W^2 + 4W- 117 = 0[/tex]

Expand

[tex]W^2 + 13W - 9W - 117 = 0[/tex]

Factorize

[tex]W(W + 13) - 9(W + 13) = 0[/tex]

Factor out W + 13

[tex](W - 9)(W + 13) = 0[/tex]

Solve for W

[tex]W = 9[/tex] or [tex]W = -13[/tex]

The dimension cannot be negative.

So:

[tex]W = 9[/tex]

Recall that:

[tex]L =4 + W[/tex]

[tex]L = 4 + 9[/tex]

[tex]L = 13[/tex]

So, the dimension of the rectangle is:

[tex]Length = 13m[/tex]

[tex]Width = 9m[/tex]

Read more about areas at:

https://brainly.com/question/15218510

if you place a 45 foot ladder against the top of a 36 foot building, how many feet will the bottom of the ladder be from the building?​

Answers

Answer:

9 feet

Step-by-step explanation:

Convert the following equation to slope-intercept form and
then graph: 2x + 5y = 15.

Answers

the equation is y=-2/5x+3

I need help for this

A local city collects 7% sales tax. If the total purchase was $321,000, then how much was collected for sales tax?

A.$31.50
B.$22.47
C.$21.00
D.$250.00

Answers

Answer: B. 22.47

Explanation:
321,000 / 7% = 22,470
So the answer would be B.

19)
For which value of x is the equation 3(x + 2) + x = 2x + 16 true?
at
A)
2.
ng
0
5
B)
3
C
4.
D)
5

Answers

Answer:

The correct answer is: Option D) 5

Step-by-step explanation:

Given equation is:

[tex]3(x + 2) + x = 2x + 16[/tex]

In order to find that which values of x makes the equation true, we have to put each value of x in the equation. When both sides of equations will be equal, that value of x will be true for the equation.

Putting x = 2

[tex]3(2 + 2) + 2 = 2(2) + 16\\3(4)+2 = 4+16\\12+2 = 20\\14 \neq 20[/tex]

Putting x = 3

[tex]3(3 + 2) + 3 = 2(3) + 16\\3(5)+3 = 6+16\\17+3 = 22\\20 \neq 22[/tex]

Putting x=4

[tex]3(4+2)+4 = 2(4)+16\\3(6)+4 = 8+16\\18+4 = 24\\22 \neq 24[/tex]

Putting x = 5

[tex]3(5+2)+5 = 2(5)+16\\3(7)+5 = 10+16\\21+5 = 26\\26 = 26[/tex]

The equation is true for x = 5

Hence,

The correct answer is: Option D) 5

need help asap pls!!!!

Answers

Answer:

z = 22

Step-by-step explanation:

Since this is a rhombus, we know that parallel sides are equal in length and that the angles should add to 360 degrees. The opposing angles, therefore, are also equal in size. So, you can find the answer by setting the two angles to each other.

3z = z + 44

2z = 44

z = 22

Answer:

z=22

Step-by-step explanation:

3z = z + 44

3z - z = 2z

2z = 44

z = 22

i need help or my report card is gonna have a f its coming out tommorow

Answers

Answer:

F.

A.

Step-by-step explanation:

hope this helps you

reference angle for 39π/31

Answers

Answer:

i hoped i helped if i didnt sry

Step-by-step explanation:

Helen needs 60 g of sugar to make 15 biscuits.
She also needs
three times as much flour as sugar
two times as much butter as sugar
Helen is going to make 60 biscuits.
a) Work out the amount of flour she needs.
Helen has to buy all the butter she needs to make 60 biscuits.
She buys the butter in 250 g packs.
b) (i) What is the exact amount of butter she needs?
g
(ii) How many packs of butter will she have to buy?

Answers

Answer:

1 pack of butter, and 360 grams flour.

Step-by-step explanation:

it just mental math, and i kinda forget how i even got the answer, but its 1 because she only needs 240 grams. and also 360 flour.

Answer:

I'll give you the correct answer:

a) You need to times 60 by 3: 60*3. This will get you 180g, which gets your first mark.
Next, you must times 180 by 4: 180*4. This gets you 720g, and there's your final answer + the last marks.

b) (i) 420g

 (ii) 2 packs, because there is 240 g in one pack so you times it by two.

Hope this helps!

Please answer soon ty!

Answers

Answer:

A

Step-by-step explanation:

4.22

Find the Prime Factorization of 72.
A. 23 x 9
B. 22 x 18
C. 22 x 33
D. 23 x 32

Answers

It B hope this helps:) have a great day

HELP PLEASE The 20% tip on a $8 sandwich​

Answers

Answer:

$1.60

Step-by-step explanation:

So, to find the persent of a number, we need to make the percent a decimal.

So, 20% is equal to 0.2

Then, we need to multiply 0.2*8

       8.0

*      0.2

________

       1.6

So, our answer is 1 dollar and 60 cents!

Answer:

$1.60 (shorter answer)

Can someone pls help me?

Answers

I believe the answer is AD=7.0

simplify the equation ​

Answers

the answer in decimal form is 1.460593 and you can simplify it to 1.5

Amirah is 4 years older than Priya and Shirley is
2 years younger than Priya. If the sum of their ages
is 47, find their respective ages.​

Answers

Answer:

Priyah = 15

Amirah = 19

Shirley = 13

Step-by-step explanation:

Let A represents Amirah, P Priyah and S, Shirley.

So, we have:

[tex]A = 4 + P[/tex] --- 4 years older

[tex]S = P - 2[/tex] --- 2 years younger

[tex]A + P + S = 47[/tex]

Required

Find their ages

Substitute 4 + P for A and P - 2 for S in [tex]A + P + S = 47[/tex]

[tex]4 + P + P + P - 2 = 47[/tex]

[tex]4 + 3P - 2 = 47[/tex]

Collect Like Terms

[tex]3P = 47 - 4+ 2[/tex]

[tex]3P = 45[/tex]

Divide both sides by 3

[tex]P = \frac{45}{3}[/tex]

[tex]P = 15[/tex]

Substitute 15 for P in [tex]A = 4 + P[/tex] and [tex]S = P - 2[/tex]

[tex]A = 4 + 15[/tex]

[tex]A = 19[/tex]

[tex]S = 15 - 2[/tex]

[tex]S = 13[/tex]

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