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MrRissso [65]
3 years ago
15

Solve for y: 2x+3y=21

Mathematics
1 answer:
stealth61 [152]3 years ago
6 0

Answer:

y = 7 - 2x/3

Step-by-step explanation:

Make the y alone, so 3y = -2x+21

Divide everything else by 3, so y = -2x/3 +7

You end with the answer of y= 7-2x+3

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My ones digit is twice the hundreds digit
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Translate the problem into a mathematical sentence, using c as your variable
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c=8

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8 0
3 years ago
If joe travels 434 miles in 7 hours, how far will he travel in 10 hours at the same speed?
Nookie1986 [14]

He travels 620miles at the same speed.

Given that joe travels 434 miles in 7 hours.

An object's speed is determined by how quickly it moves. It is the distance a body travels in one unit of time.

Firstly, we will find the speed when the distance is 434 miles and the time is 7 hours by using the formula

Speed=Distance/Time

Substitute the values in the formula, we get

Speed=434miles/7 hours

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Now, we will find the distance when time is 10 hours, we get

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Multiply both sides by 10, and we get

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620miles=distance.

Hence, in 10 hours at the same speed, he travels when joe travels 434 miles in 7 hours is 620miles.

Learn more about speed from here brainly.com/question/10113134

#SPJ4

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