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mixer [17]
3 years ago
12

To solve the system of equations below, Grace isolated the variable y in the

Mathematics
2 answers:
yulyashka [42]3 years ago
6 0

Answer:

D

Step-by-step explanation:

2y=10x

Divide both sides by 2.

y=5x

Now substitute this into the second equation.

Arte-miy333 [17]3 years ago
4 0

Answer:

b. x^2/64 - 5y^2/36=1

Step-by-step explanation: a p e x

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ASAP! BRAINLIEST!
nasty-shy [4]

Answer:

The average rate of change from 3 to 6 storms = 0.04

Step-by-step explanation:

Let number of Storms = N

And Predicted Gas Price = P

it is required to find the average rate of change from 3 to 6 storms.

At N = 3 ⇒ P = $2.44

At N = 6 ⇒ P = $2.56

So, the average rate of change = \frac{2.56-2.44}{6-3}=\frac{0.12}{3}=0.04

5 0
3 years ago
A four-pack of 42-ounce ink cartridges sells for $85.99. The expression 42c represents the amount of ink in a number of cartridg
anastassius [24]
C represents the number of four-packs of cartridges because the question says there are 4 pack of 42 ounceink cartridges that sell for 85.99...If you were ever to create an equation with this it would be 42c = 85.99 
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7 0
3 years ago
Read 2 more answers
The problem is in the picture :)
frozen [14]

Answer:

Last option: 4

Step-by-step explanation:

The quadratic equation simplified: x^2-4x=-\frac{7}{2} has the form:

ax^2+bx=c

In this case, you can identify that "a", "b" and "c" are:

a=1\\b=-4\\c=-\frac{7}{2}

To solve this quadratic equation  by completing the square, Carlos should add (\frac{b}{2})^2 to both sides of the equation. This is:

(\frac{-4}{2})^2=(-2)^2=4

Then:

x^2-4x+4=-\frac{7}{2}+4

Therefore you can observe that the number he should add to both sides of the equation is: 4

8 0
3 years ago
Solve for x: 81^ x-4=9^3x<br><br>Show all work for brainliest
guajiro [1.7K]

Answer:

Solve for x by simplifying both sides of the equation, then isolating the variable.x≈−0.00413995,1.6090059

Step-by-step explanation:

5 0
3 years ago
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Solve the equation. Does the equation as an identity or does it have no solution?
Mars2501 [29]

Answer:

D=0.031746

Step-by-step explanation:

Isolate the Variable by dividing each side by Factors that don't contain the Variable.

7 0
3 years ago
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