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3 years ago

15

I need to know the answer to 3a

1 answer:

In-s [12.5K]3 years ago

6 0

6.

To find this, follow these steps:

a = 1/2bh

15 = 1/2 x 5 x h

First, multiply the left side of the equal sign by 2 to get rid of the 1/2.

After you do this, you should have this:

30 = 5h

Now, divide both sides by 5 to find your final answer for h which is 6.

Hope this helps!

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Answer:

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Step-by-step explanation:

First, multiply the two denominators together to get the shared denominator, which will allow you to actually subtract the two numbers. 4 × 8 = 32, so the shared denominator will be 32.

Then, cross-multiply. 11 × 8 = 88, so $\frac{11}{4}$ becomes $\frac{88}{32}$ . 3 × 4 = 12, so $\frac{3}{8}$ becomes $\frac{12}{32}$ .

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Finally, simplify. $\frac{76}{32} =\frac{19}{8}$ . The final difference is $\frac{19}{8}$ .

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