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2 years ago

Which 2 equations would you use to solve this system?

Mathematics

1 answer:

slega [8]2 years ago

4 0

Answer:

x-y=4

and

x+y=32 is your equation

difference of two number =x-y is equal to 4

sum of two number=x+y is equal to 32

x-y=4.......(1)

x+y=32.......(2)

adding equation 1 and 2

x-y +x+y=4+32

2x=36

x=36/2=16answer

substituting value of y in equation 1

16-y=4

16-4=y

y=12 answer

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Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only) (6 points)

wolverine [178]

Answer:

35.68°

Step-by-step explanation:

In the picture attached, the triangle is shown.

From sine definition:

sin(y) = opposite/hypotenuse

The leg measuring 7 units is opposite to angle y, and the hypotenuse measures 12 units, therefore:

sin(y) = 7/12

y = arcsin(7/12)

y = 35.68°

4 0

3 years ago

A bathtub is draining at a constant rate. After 2 minutes, it holds 30 gallons of water. Three minutes later, it holds 12 gallon

iris [78.8K]

3 minutes - 2 minutes = 1 minute

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it is draining at 18 gallons per minute

equation would be: y = -18x

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3 years ago

Which of the following represents the amount a customer pays including the tip of 15% if the bill was dollars? Select all that a

erastova [34]

Answer:

b+0.15b, 1.15b, b+ 15/100b

Step-by-step explanation:

i did the test and then it gave me the answer at he end ur welcome

5 0

2 years ago

Two angles are supplementary if the sum of their measures is 180 degrees. find two supplementary angles such that the smaller is

kaheart [24]

If the larger angle is x and the smaller angle is y, y=(1/2)x+30 since it's 30 more than 1/2 of it. In addition, x+y=180 since they are supplementary. Plugging y=(1/2)x+30 into that, we get x+x/2+30=180=1.5x+30. Subtracting 30 from both sides, we get 1.5x=150. Next, we can divide both sides by 1.5 to get x=100 and y=(1/2)*100+30=50+30=80

8 0

3 years ago

Please help thanks! Brainliest

KatRina [158]

9 x 9 = 81
81 - 21 = 60
60 / -6
10

4 0

2 years ago

Read 2 more answers