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Black_prince [1.1K]
3 years ago
14

Use the substitution method to solve the system of equations. {y=3x−715x−5y=14 What is the solution? The solution is (15, 5). Th

e solution is (0, 7). There is no solution. There are an infinite number of solutions.

Mathematics
2 answers:
crimeas [40]3 years ago
6 0
Y = 3x - 7...so we sub in 3x - 7 for x in the other equation

15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
15x - 15x = 14 - 35
0 = - 21...incorrect.......therefore, this has no solution

ser-zykov [4K]3 years ago
3 0

Here... This should help:

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A study analyzed the average yearly salt intake in the United States from 2012 thru 2017. The data is summarized in the table:
Ugo [173]

Answer:Is an estimate of the average grams of salt used in 2012

Step-by-step explanation: Let

x ---> the number of years since 2012

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we have

This is a linear equation in slope intercept form

where

The slope is equal to

The y-intercept or initial value is equal to

The y-intercept is the value of the function f(x) when the value of x is equal to zero

In this context, the y-intercept is the average amount of grams of salt ingested  in the year 2012

The exact value of the average amount of grams of salt ingested  in the year 2012 is 3,554 grams (see the data in the table)

Compare the exact value with the y-intercept

therefore

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3 years ago
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kaheart [24]

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Step-by-step explanation:

5 0
3 years ago
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PilotLPTM [1.2K]

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7 0
3 years ago
Express sin110 as ratio of acute angle
lesya [120]

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8 0
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Can someone explain to me in words how to do this problem 3x+122=22x-11
inn [45]

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3x + 122 = 22x - 11

Add 11 to both sides to get rid of it

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Then you would bring the 3x to the other side, so subtract 3x from both sides

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Then divide both sides by 19 to isolate x

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Hope this helps!!

8 0
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