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Andre45 [30]
3 years ago
12

Agnes scored 87 on the first test 73 on the second test, 81 on the third test. supoise Agbes has one more test in the semester a

jd wants to finish with a mean of at least 80. what does she need to get on her last test?
Mathematics
1 answer:
castortr0y [4]3 years ago
6 0
87+73+81+x=4*80, find x
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The following system of linear equations is solved by graphing them on the coordinate plane.
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3 years ago
The length of a rectangle is 3 times the width. if the perimeter is to be greater than or equal to 104 meters. what are the poss
Naya [18.7K]
Let L = length, W = width, and formula for perimeter (each side added) is
P = 2L + 2W

The first statement tells us L = 3W so we can substitute 3W for L in the formula.
P = 2(3W) + 2W

The 2nd statement tells us to make the expression for the perimeter into an inequality where it is ≥ (greater than or equal to) 104
2(3W) + 2W ≥ 104

We only need to solve this to find the possible values for W/  
2(3W) + 2W ≥ 104
8W ≥ 104    ← result of simplifying left side
W ≥ 13    ← result of dividing both sides by 8

ANSWER: The width is greater than or equal to 13: W ≥ 13

3 0
3 years ago
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PLEASE HELP ME!!! WILL GIVE BRAINLIEST AND 20 POINTS!!!!!!!
tatyana61 [14]

In step 3: it should be m + n + o = o + p


Therefore the answer is C.

7 0
3 years ago
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