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kherson [118]
3 years ago
7

at middleton middle school, marianne musf score and average of at least 80 points of 4 tests before she can apply for the schola

rship. if she scored 79 81 and 77 for the first three tests, what must she score on her last test?
Mathematics
2 answers:
Colt1911 [192]3 years ago
6 0
The answer is 83, using the equation of 320-79-81-77=x and X is equal to 83
Illusion [34]3 years ago
5 0

the answer is 83, using the equation of 320-79-81-77=x and X is equal to 83

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A line passes through the points (4,8) and (2,0). What is its equation in slope-intercept<br> form?
lorasvet [3.4K]

Answer:

The answer is y = 4x - 8.

Step-by-step explanation:

☆Remember: m =  \frac{y_2 - y_1}{x_2 - x_1}

☆Slope-intercept: y = mx + b

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☆We need to find the slope first. So just plug in according to the slope formula!

m =  \frac{0 - 8}{2 - 4}  =  \frac{ - 8}{ - 2}  = 4

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☆Now we need to find the y-intercept. We are going to plug in the slope and a set of coordinates to find the y-intercept.

y = mx + b \\ 8 = 4(4) + b \\ 8 = 16 + b \\   \frac{ - 16 =  - 16 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }{ - 8 = b \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }

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☆Now all we need to do is plug in and we are done!

y = 4x - 8

▪Happy To Help <3

6 0
3 years ago
Please help with all!!
EastWind [94]

Answer:

1. x=7

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3.x=12

4.x=9

5. x= -5

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Step-by-step explanation:


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3 years ago
The sum of seven and a number n<br>​
Ivahew [28]

Answer:

7+n

Step-by-step explanation:

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4 years ago
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Svetlanka [38]

Answer:

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Step-by-step explanation:

2*v-(-12)>0

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Equation at the end of step  1  :

Step  2  :

 2.1    Divide both sides by  2 

Solve Basic Inequality :

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Inequality Plot :

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2.000 X + 12.000 > 0

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3 years ago
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harkovskaia [24]

Answer:

Option A wilk be the correct answer.

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3 years ago
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