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3 years ago

frank made $156.00 12 hours of work. at the same rate, how many hours would he have to work to make $221?

Mathematics

1 answer:

uranmaximum [27]3 years ago

7 0

Answer:

17 hours

Step-by-step explanation:

We first need to find the hourly rate:

156 / 12 = 13

Hourly Rate: $13

Now we can divide 221 by 13, this gives us 17.

That means that Frank will have to work 17 hours to make $221.

Hope this helps!

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Step-by-step explanation:

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3 years ago

Given the triangle below, what is m < b, rounded to the nearest tenth?

ahrayia [7]

Option A:

m∠B = 42.1°

Solution:

Given data:

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Using sine formula:

$$\frac{b}{\sin B}=\frac{c}{\sin C}$

Substitute the given values.

$$\frac{18}{\sin B}=\frac{15}{\sin 34^\circ}$

Do cross multiplication.

$${18} \times {\sin 34^\circ}={15} \times{\sin B}$

Divide by 15 on both sides.

$$\frac{{18} \times {\sin 34^\circ}}{15} =\frac{{15} \times{\sin B}}{15}$

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Switch the sides.

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Option A is the correct answer.

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3 years ago