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andreyandreev [35.5K]
3 years ago
10

Mary said, "Four times my age reduced by thirty is six. How old am I?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

9

Step-by-step explanation:

I said so

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Hi!

I have attached 2 images that should help you understand :)

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Let's start with the rectangle.

To find the area of a rectangle, multiply the width times the height. 
10 · 4 = 40

Rectangle = 40cm

Next up, the red triangles.

I have included another image showing the triangles combined into rectangles. So we can find the area of the triangles just like we would rectangles!

(let me know if you don't understand how I found the width + height of the triangles)

5 · 10 = 50

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And finally, the green triangles.

8 · 7 = 56

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Add it all together and you get...

40 + 50 + 56 = 146

The answer to the question is 146cm.

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3 years ago
The next model of a sports car will cost 5.6% less than the current model. The current model costs $52,000. How much will the pr
Lostsunrise [7]

Answer:

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Step-by-step explanation:

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3 years ago
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Each letter of the word "thunderstorm" has been written on a separate slip of paper and put into a box. Find the probability of
xxTIMURxx [149]

SOLUTION

From the question, we want to find the probability of selecting a slip of paper with the letter t on it, then selecting the letter r, with replacement.

This means the probability of selecting t and r.

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1 year ago
In this square, all the angles are equal. What is the measure of angle x°?
Kisachek [45]

Answer:

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Step-by-step explanation:

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