Question

If You can pls answer all 4 with the equations

•What is the value of the expression
6x - 2y +5y when x=10 and y=3?

•If x - 16 = 29, what is the value of 2(x + 5)

•What is the value of 3n² - 4m ÷ 6 when n=4 and m=18?

•Find the value of (⅑)³​​

Answer 1

9514 1404 393

Answer:

1. 69
2. 100
3. -24
4. 1/729

Explanation:

Put the numbers where the variables are and do the arithmetic. Your calculator can help.

1. 6x -2y +5y = 6(10) -2(3) +5(3) = 60 -6 +15 = 69

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2. add 16 to find x.

x -16 = 29

x = 45

Then do the substitution:

2(45 +5) = 2(50) = 100

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3. 3(4²) -4(18) = 3(16) -4(18) = 48 -72 = -24

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4. (1/9)³ = (1/9)(1/9)(1/9) = 1/(9·9·9) = 1/729