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siniylev [52]
4 years ago
6

What does a equal -5(6a+21)=-15

Mathematics
1 answer:
borishaifa [10]4 years ago
7 0
Step 1 : Simplify both sides
-5(6a+21)=-15
(-5)(6a)+(-5)(21)=-15
-30a-105=-15
Step 2 : Add 105 to both sides
-30a-105+105=-15+105
-30a=90
Step 3 : Divide both sides by -30
-30a=90
—————
-30 -30

a = -3
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1. A senator is thinking about running for president. But she will only do so if more than 60% of the voters view her favorably.
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The senator is faced with the making a decision to run for President, based

on the conclusion she can make from the data she gathers.

The statistical method that would be best for her to use is <u>inferential </u>

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Reason:

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Descriptive statistics methods; Theses are statistical method used as a

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Given that the senator is trying to draw conclusion based on the data she

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The type inferential statistic method that can be used is the confidence

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From the data collected, the proportion of voters that view her favorably is

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Therefore;

The statistical method that would be best for her to use is the

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Learn more here:

brainly.com/question/15873157

7 0
3 years ago
The value of a collectible coin can be represented by the equation y = 2 x + 15, where x represents its age in years and y repre
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Answer:

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