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3 years ago

PR = 9x - 31 and QR = 43; find x

Mathematics

1 answer:

lesya692 [45]3 years ago

3 0

PR=9(43)-31

PR=387-31

PR=356

I think that's the answer :)

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Sean is comparing dog food prices.At pet foods store,the total weight of a bag of dog food varies directly with the number of ba

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Answer:

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3 years ago

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vichka [17]

Karmin will make $18.4 for working an hour after the increase.

Step-by-step explanation:

Step 1:

First, we need to determine how much Karmin made an hour.

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So Karmen made $16 every hour that she worked. She worked for 30 hours and earned $480.

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Step 2:

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Step-by-step explanation:

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Item 12

kozerog [31]

Answer:

The height is 4.472

Step-by-step explanation:

That formula is Heron's formula.

Where "s" is calculated like this:

s = (a + b + c) / 2

In this case:

a = 14

b = 12

c = 6

replacing:

s = (14 + 12 + 6) / 2

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Now we calculate the area:

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The area of the triangle is:

A = b * h / 2

In this case we will take the base as the longest side of the triangle, that is to say = 14

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