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11111nata11111 [884]
2 years ago
15

Ashley has scored 81, 74, 72, and 93 on her previous four tests. What score does she need on her next test so that her average (

mean) is 79?
Mathematics
1 answer:
charle [14.2K]2 years ago
6 0

Answer:

75

Step-by-step explanation:

Add 81, 74, 72, and 93 together

add 75 to that total

divide by 5

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Answer:

I found two different solutions. Hope one of them help!

1. x = -1/3 = -0.333

2. x = 5/2 = 2.500

Step-by-step explanation:

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  x  =    ——————

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Can  √ 289 be simplified ?

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Two real solutions:

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Two solutions were found :

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