Please someone help me. I really don’t understand geometry.. it’s confusing :c

Mathematics

1 answer:

RideAnS [48]3 years ago

8 0

So basically the side length went from 3 to 7.5, so we have to find the factor which caused the increase. We have to find what times 3 makes 7.5

So our equation is 3×x=7.5
From here on it's just algebra, we'll divide each side by 3 to isolate x

7.5/3=2.5
x=2.5
So the scale factor applied to the first rectangle is 2.5

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I hope this helps you

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Step-by-step explanation:

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$\frac{8}{5}$ ÷ $\frac{27}{4}$

Now, in order to divide the fraction, we will need to flip the second fraction over, and then multiply the two fractions together. A great way to remember this is the phrase Copy Dot Flip - Copy the first fraction, put a dot for multiplication, and flip the second fraction.

$\frac{8}{5}$ · $\frac{4}{27}$

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3 years ago

4/9 divided by what equals 12

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Read 2 more answers

What do I need to subtract from to get angle two?

ololo11 [35]

Step 1) Add up the three given angles: 125+109+83 = 317

Step 2) Subtract the result (found in step one) from 360
360 - 317 = 43

The reason for the 360 is because for any four-sided polygon, the angles always add up to 360 degrees.

The answer is 43

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