All categories

4 years ago

What is the solution to the system of equations below?

1 answer:

7 0

If you add the two equations together, you'll get:
$5x=-10$ , which gives x = -2.

Replace x = -2 in any of the two equations and you'll get y = 1.

So correct answer is D: x=-2,y=1

You might be interested in

The fountain is made up of two semicircles and one quarter circle. Find the perimeter and area of the fountain.

antoniya [11.8K]

Answer:

628ft²

Step-by-step explanation:

From the diagram, we are given the following

diameter of the semicircles

2semi circles = 1 circle

Area of 2semicircles = πd²/4

Area of 2semicircles = 3.14(20)²/4

Area of 2semicircles = 3.14*400/4

Area of 2semicircles = 3.14*100

Area of 2semicircles = 314ft²

Area of the quarter circle = πd²/4 * 1/4

Area of the quarter circle = πd²/16

d = 2r

d = 2*20

d = 40ft

Area of the quarter circle = 3.14(40)²/16

Area of the quarter circle = 3.14*1600/16

Area of the quarter circle = 3.14*100

Area of the quarter circle = 314ft²

Area of the fountain = 314ft²+314ft²

Area of the fountain = 628ft²

3 0

3 years ago

Yesterday, Gordon had 128 baseball cards. Today, he got d more. Using d, write an expression for the total number cards he has n

raketka [301]

Answer: he has 128 + d

Step-by-step explanation:

well if he had 128 yesterday and today he got d more just add d to 128 and ull see

for example, lets say d = 16

to find out the total we woukd have to add 16 to 128 (just an example the answer is not d=16)

answer= 128+d

3 0

2 years ago

Let f be defined as shown. What is f^-1(-3)

Irina18 [472]

Hello,

$f^{-1}(-3)=-1\\$

You have just to read the arrows un reversed order:

in f we find (-1,-3) so in f^{-1} we find (-1,-3)^{-1}=(-3,-1)

5 0

3 years ago

Simplify -4 1/4-(-9 1/2) = ? A. -13 1/3 B. -5 1/4 C. 13 1/3 D. 5 1/4

bagirrra123 [75]

Answer:

Step-by-step explanation:

Hope this helps

5 0

3 years ago

beth made a batch of blueberry and banana muffins. Each batch is 6 muffins. She makes 2.5 batches of blueberry muffins. How many

Murljashka [212]

The answer should be 7.5 batches of banana. I hope this helps

3 0

3 years ago

Read 2 more answers