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aalyn [17]
3 years ago
8

Solving proportions 4/3=8/x

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0
Two ways:

\frac{4}{3} = \frac{8}{x}  cross multiply
4x = 3*8
4x = 24
x = 6

\frac{4}{3} * \frac{2}{} = \frac{8}{x}
\frac{4}{3} * \frac{2}{2} = \frac{8}{6}

The answer is 6


Oliga [24]3 years ago
6 0
\frac{4}{3} = \frac{8}{x} should be x = 6.

First, multiply both sides by x. Your problem should look like: \frac{4}{3} x = 8
Second, simplify \frac{4}{3} x to \frac{4x}{3}. Your problem should look like: \frac{4x}{3} = 8.
Third, multiply both sides by 3. Your problem should look like: 4x = 24.
Fourth, divide both sides by 4. Your problem should look like: x = \frac{24}{4}.
Fifth, simplify \frac{24}{4} to 6. Your problem should look like: x = 6, which is your answer. 

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The price for a small glass of milk is $0.95, and the price for a breakfast taco is $1.15.

Step-by-step explanation:

Let the price of a taco be x and the price for a small glass of milk be y.

x + y = 2.1

2x + 3y = 5.15

Multiply the first equation by 2:

2x + 2y = 4.2

Subtract the new third equation from the second equation:

(2x + 3y) - (2x + 2y) = 5.15 - 4.2

y = 0.95

Hence, the price for a small glass of milk is $0.95.

Substitute y into the first equation.

x + 0.95 = 2.1

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Therefore, the price for a breakfast taco is $1.15.

Hope this helped!

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So, the given equation can be factorised using the above rule. The factorisation is as follows.

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