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evablogger [386]
3 years ago
5

Solve the equation for y. 4.2x−1.4y=2.1

Mathematics
1 answer:
Vlada [557]3 years ago
7 0

Answer:

y=3x- 3/2

Step-by-step explanation:

4.2x−1.4y=2.1

Subtract 4.2x from each side

4.2x-4.2x−1.4y=-4.2x+2.1

-1.4y = -4.2x +2.1

divide each side by -1.4

-1.4y/-1.4y = -4.2x/ -1.4 +2.1/-1.4y

y=3x- 3/2

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If the ratio of girls to boys is 5 to 6, it can be written as 5/6. You can use cross multiplication to figure out how many girls there are if there are 72 boys by setting the number of girls equal to x and dividing it by 72 like so: \frac{5}{6}= \frac{x}{72}

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3 years ago
BRAINLEIST ANSWER TO WHOEVER GIVES ME CORRECT ANSWER FIRST
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Great, because  y=2x+5 is 3xy kay.

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Read 2 more answers
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