4 years ago

Evaluate the expression 9- z when z=8

Mathematics

1 answer:

Galina-37 [17]4 years ago

3 0

Answer:1

Step-by-step explanation:

When z=8

The expression 9-z would be 9-8=1

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Solve the inequality -5/4(8x+4)<6-3x. Show your work.

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Answer:

$x>-\frac{11}{7}$

Step-by-step explanation:

Step 1: Distribute

$-\frac{5}{4} (8x+4)$

$(-\frac{5}{4} *8x)+(-\frac{5}{4} *4)$

$-\frac{40x}{4}-\frac{20}{4}$

$-10x-5$

Step 2: Add 10x to both sides

$-10x-5\mathbf{+10x}$

$-5$

Step 3: Subtract 6 from both sides

$-5\mathbf{-6}$

$-11$

Step 4: Divide both sides by 7

$-11\mathbf{/7}$

$x>-\frac{11}{7}$

Answer: $x>-\frac{11}{7}$

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Step-by-step explanation:

It’s adding 7, then 9, then 11, and so on.

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