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12345 [234]
3 years ago
8

p + 7 = 12 Subtract 7 from both sides of the equation. Subtract 7 from 7. 7 – 7 = 0 and 12 – 7 = 5, so p = 5. Substitute 12 for

p to check the solution. Substitute 5 for p to check the solution.
Mathematics
1 answer:
charle [14.2K]3 years ago
6 0

substitute 5 for p to check the solution

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Alenkasestr [34]

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Step-by-step explanation:

4 0
2 years ago
The value of y varies directly with x, and y=3 when x=9 find y when x = 21
tester [92]

Answer: y = 7

Step-by-step explanation:

Step 1) plug in 3 for y and 9 for x in the direct variation formula, which is y = kx

3 = k(9)

Step 2) Solve for k

3 = k(9) (Divide by 9 on both sides)

3/9 = k (Now simplify 3/9)

1/3 = k. So k = 1/3

*just FYI: “k” is the constant of variation.

Step 3) use the equation y = kx and plug in 1/3 for k

y = 1/3x

Step 4) using the equation y = 1/3x, plug in 21 for x.

y = 1/3(21) (1/3*21 is the same as 21/3)

y = 21/3 (21/3 = 7)

y = 7. So that’s you’re answer! When x=21, y=7 because 7 is 1/3 of 21!

Hope this helps! My best wishes to you as you go through school!

3 0
3 years ago
7 Given: -8(w + 1) = -5(w + 10); Prove: w = 14<br> Statements
LenKa [72]

Answer:

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Step-by-step explanation:

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Collect like terms and calculate

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Then divide on both sides

5 0
2 years ago
For the graph, what is a reasonable constraint so that the function is at least 600?
Harman [31]

Answer:

I remember taking this too. So, the correct answer is A! I SWEAR ITS RIGHT!

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
Read 2 more answers
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