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Gemiola [76]
3 years ago
11

The 5th out of 10 questions

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
8 0

The answer would be B.

To properly solve the answer you would have to leave \frac{2}{3} alone and change the division sign into multiplication. Then, do reciprocal of \frac{4}{5}.

In this case the person did not do the reciprocal of \frac{4}{5}.

So, the answer is B

seraphim [82]3 years ago
7 0

In the division a/b, a is the dividend, and b is the divisor.

In this problem, 2/3 is the dividend, and 4/5 is the divisor.

She needed to multiply the dividend, 2/3, by the reciprocal of the divisor, 5/4.

Instead, she multiplied the dividend by the divisor without using the reciprocal.

Answer: second choice

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Given f(x) = 2x + 9, if f(x) = 15, find x.​
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<h2>x = 3</h2>

Step-by-step explanation:

f(x)=2x+9\\\\\text{Substitute}\ f(x)=15:\\\\15=2x+9\qquad\text{subtract 9 from both isdes}\\\\15-9=2x+9-9\\\\6=2x\qquad\text{divide both sides by 2}\\\\\dfrac{6}{2}=\dfrac{2x}{2}\\\\3=x\to x=3

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Hey, I think an image is needed to answer this question.
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The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.
Lady bird [3.3K]

Answer:

Step-by-step explanation:

The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

find the value of x

x + 2x + x + 8 = 180

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x = 43°

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check

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6 0
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Please help if you can
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Step-by-step explanation:

All you do is add 60 and 70 together and then subtract what you had got from 180 witch gives you the answer for y and sense x is vertical to y they are going to be the same.

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