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Art [367]
3 years ago
15

The ratio of coins to notes in a bag is 3 to 8. If there are a total of 24 coins then how many notes are there? 

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0
Set up a proportion 
3 coins:8 notes and then the other one 24 coins : x (unknown notes)
they have a relationship so we can set them equal to each other.
3/8=24/x cross multiply: 8 * 24 = 192
Now divide that by 3: 192/3 = 64 
So there are 64 notes in the bag
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By solving a system of equations, we will see that m measures 12 units.

<h3>How to get the measure of m?</h3>

Notice that we have 3 right triangles.

Then we can write the equations:

cos(a) = 6/m

For the small triangle on the left, where m is the hypotenuse.

cos(a) = m/(6 + 18)

For the larger triangle (the one composed of the two triangles).

Where in both equations, angle "a" is the one in the top left.

Then we have the system of equations:

cos(a) = 6/m

cos(a) = m/(6 + 18)

Then we can write:

6/m = m/(6 + 18)

If we simplify the expression, we get:

6*(6 + 18) = m^2

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Then we conclude that m measures 12 units.

If you want to learn more about right triangles:

brainly.com/question/2217700

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2 years ago
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3 0
3 years ago
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3 years ago
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PLEASE ANSWER ASAP: Miriam bought 64 pounds of popcorn she kept 1/4 for her family then gave 1/8 of the remainder to her club an
saw5 [17]

Answer:

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Since there are 16 ounces in a pound

5 0
2 years ago
Read 2 more answers
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