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olasank [31]
2 years ago
6

Solve for b r = 9(b-a)​

Mathematics
1 answer:
zvonat [6]2 years ago
7 0

r=9b_9a =r+9a/9=9b/9=b=r+9a/9

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Can someone please help me out? It would really make me happier if you did.
asambeis [7]

Answer:

B) 8 and 24.

Step-by-step explanation:

Just by looking at the answer choices, since one number must be three times the other, we can determine that the correct answer is B.

Regardless, let's work this out mathematically. Let the first number be <em>a</em> and the second number be <em>b</em>.

Their difference is 16. Hence:

a-b=16

The first number is three times the second number. So:

a=3b

Substitute:

3b-b=16

Solve for <em>b</em>. Subtract:

2b=16

And divide both sides by two:

b=8

So, the second number is 8.

And since the first number is three times the second, the first number is 24.

Our answer is B as expected.

5 0
3 years ago
Help will give crown
frosja888 [35]

Answer:

This means our slope is equal to \frac{6}{4}.

Step-by-step explanation:

Your ordered pairs are:

(-4, -4) and (0, 2)

To solve for the slope, we must use slope formula.

\frac{y2-y1}{x2-x1}

Substitute:

\frac{2+4}{0+4}

Solve:

\frac{6}{4}

This means our slope is equal to \frac{6}{4}.

Hope this helped. :)

4 0
3 years ago
Read 2 more answers
Ziyad is hoping to start his own lawn care business in Gettysburg, PA. Gettysburg has about 2,400 households. Ziyad went to
Irina-Kira [14]

Answer:

1380 households in Gettysburg are likely interested in using lawn care services

Step-by-step explanation:

To solve this question, we find the sample proportion and estimate for the entire population.

Sample proportion of households in Gettysburg that are likely to be interested in using lawn care services?

92 of 92 + 51 + 17 = 160 households.

92/160 = 0.575

Based on his results, how many households in Gettysburg are likely interested in using lawn care services?

Sample proportion of 0.575.

For the entire population of 2400 households:

0.575*2400 = 1380

1380 households in Gettysburg are likely interested in using lawn care services

5 0
3 years ago
Please someone help me !!!!!
Sveta_85 [38]
X² = 16
x = ±√16
x = <span>±4

</span>The roots of this equation are -4 and 4
<span>Сorrect answer is third from above</span>
6 0
3 years ago
Whats the median? 76, 84, 93, 67, 82, 87, and 76.
son4ous [18]

Answer:

82

Step-by-step explanation:

In order to find the median, you need to put the number list in smallest to largest order.

67, 76, 76, 82, 84, 87, 93

<em>The median is the number in the middle, so the median would be 82.</em>

4 0
3 years ago
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