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3 years ago

Choose the proportion that is true. 3/8=15/40 12/13=2/3 9/13=27/36 16/49=4/7

2 answers:

8 0

3/8=15/40 is the answer

nlexa [21]3 years ago

4 0

Answer:

3/8=15/40

Step-by-step explanation:

Multiply both the numerator and the denominator of the first term by 5 and you'll see that it's the same fraction.

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Oksi-84 [34.3K]

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago

mote1985 [20]

Answer:

Step-by-step explanation:

We know the measurements of one half of the triangle.
We know that the triangles are a slightly different size but they have one side that is the same length, which measures 6. If we rotated the triangles, 10 would be the same as side b on the smaller triangle.
We can represent this with $\frac{10}{b}$ , or $\frac{big triangle}{small triangle}$ .
With the triangles rotated, we know if 10 is the same side as b (b is NOT 10, by the way!) then 8 would be the same side as a ( $\frac{8}{a}$ )
So if the third side of both triangles is 6, then we can set up all of this information to figure out what a and b are. How?
Well, if $\frac{8}{10}$ = $\frac{a}{b}$ and $\frac{8}{a}$ = $\frac{10}{b}$ , then 8b = 10a. What does 8 and 10 both go into? 80! So what would we multiply 8 and 10 by (which would be a and b) to get 80 on both sides?
a = 8 because 10 • 8 = 80.
b = 10 because 8 • 10 = 80.
That would get us 80 = 80, which is not an impossibility! :D

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

6 0

2 years ago