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3 years ago

The table shows the time it takes a carpenter to build various pieces of furniture.

Mathematics

1 answer:

makkiz [27]3 years ago

5 0

time taken to make bed = 15.75 hours

time taken to make a coffee table = 6.375 hours

time taken to make a dresser = 9.5 hours

Total time =

$2(15.75) + 6.375 + 3(9.5)$

$= 66.375$

$66 \frac{3}{8}$

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2.The mean area of several thousand apartments in a new development is advertised to be 1,100 square feet. A consumer advocate h

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Answer:

Null Hypothesis, $H_0$ : $\mu$ = 1,100 square feet

Alternate Hypothesis, $H_A$ : $\mu$ < 1,100 square feet

Step-by-step explanation:

We are given that the mean area of several thousand apartments in a new development is advertised to be 1,100 square feet.

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3 years ago

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den301095 [7]

<h2>Answer:</h2>

We will use substitution to solve this system for x.

$x - 2y = 27\\y = 5x\\\\x - 2(5x) = 27\\\\x - 10x = 27\\\\-9x = 27\\\\x = -3$

Now that we know what x is, we can determine y by pluging in -3 for x in one of the original equations. I will use the first one.

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We now have our solution.

D. $(-3, -15)$

We can check our answer by pluging the solution into one of the original equations to see if both sides equal each other. I will use the first equation.

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Since the equation checks out, our solution is correct.

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3 years ago