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nata0808 [166]
3 years ago
6

What is one point on a graph for the equation y=-3x-1 and how do we substitute it?

Mathematics
1 answer:
alukav5142 [94]3 years ago
5 0

use the slope intercept equation to find the slope and the y intercept

y = mx-b

m = slope

b = y intercept

m is the number before the x so -3 is the slope

 and -1 is the y intercept

 so a point on the graph would be the y intercept at (0,-1)

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The number of messages sent by Elsa, Ryan and Jim are 11 , 84 and 21 respectively.

<em><u>Explanation</u></em>

Suppose, the number of messages Jim sent is x

As Ryan sent 4 times as many messages as Jim, so the number of messages sent by Ryan = 4x

Also, Elsa sent 10 fewer messages than Jim, so the number of messages sent by Elsa = x-10

Given that, they sent a <u>total of 116</u> text messages. So the equation will be.......

x+4x+(x-10)=116\\ \\ 6x-10=116\\ \\ 6x= 126\\ \\ x= \frac{126}{6}= 21

So, the number of messages sent by each of them.....

Jim = 21\\ Ryan = 4*21= 84\\ Elsa= 21-10= 11

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3 years ago
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3 years ago
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3 0
4 years ago
Read 2 more answers
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