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AnnyKZ [126]
4 years ago
11

Can some body check my math on this one(question #6) I think it’s n=26 am I right?

Mathematics
2 answers:
Advocard [28]4 years ago
4 0

Answer:

n=26

Step-by-step explanation:

So we have the equation:

-413.4=-15.9n

To figure out the value of n, divide both sides by -15.9. The right will cancel. Thus:

n=(-413.4)/(-15.9)

Use a calculator:

n=26

So, the answer is 26.

So, yes, you are very correct!

Gnom [1K]4 years ago
3 0

Answer:

n=26

Step-by-step explanation:

We are given the equation:

-413.4=-15.9n

We want to solve for the unknown variable, which is n. Therefore, we must isolate n on one side of the equation.

n is being multiplied by -15.9. The inverse of multiplication is division. Divide both sides of the equation by -15.9

\frac{-413.4}{-15.9} =\frac{-15.9n}{-15.9}

\frac{-413.4}{-15.9}=n

26=n

Let's check our solution. Plug 26 in for n and solve.

-413.4=-15.9n

-413.4=-15.9(26)

Multiply -15.9 and 26.

-413.4=-413.4

This checks out, so we know our solution is correct.

The solution to this equation is n=26 and you are correct!

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tester [92]

Answer:

a) $10 per hour

b) Sandra

Step-by-step explanation:

<u>Complete Question:</u>

<em>The equation y 10x describes the amount of money Sandra earns, where x is the number of hours she  works and y is the amount of money she earns </em>

<em>The table shows the amount of money Susan cams for different numbers of hours worked</em>

<em>Susan's Earnings </em>

<em>Time (h)           Money Earned</em>

<em>5                              40</em>

<em>8                              64                </em>

<em>10                             80</em>

<em>(a) How much money does Sandra eam per hour? Show your work </em>

<em>(b) Who earns more per hour? Justify your answer</em>

<em />

<em />

<u>Answer:</u>

a)

y = 10x is sandra's equation. To find her hourly rate, we need to find how much she earns in "1" hour. Since x is hours, we plug in x = 1 and find y (which is her pay).

y = 10x

y = 10(1)

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$10 is Sandra's hourly rate.

b)

To find who earns more per hour, we need to find the hourly rate of Susan as well from the table. Then compare.

5 hours = $40 so per hour is 40/5 = 8

8 hours is 64, so per hour 64/8 = 8

10 hours is 80, so 80/10 = 8

The table is justified at $8 per hour.

We know Sandra earns $10/hr and Susan earns $8 per hour. So Sandra earns more per hour.

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Step-by-step explanation:

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(7, 5) and (-3, 4) written in slope intercept form
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Answer:

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Step-by-step explanation:

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