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3 years ago

11

On the first 4 quizzes of her chemistry class, nadia got an average score of 88. what does she need on the next quiz to have an

overall average of 90?

1 answer:

USPshnik [31]3 years ago

5 0

Answer: 98

88+88+88+88+98= 450
450/5 = 90

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The football team has 30 more members than the basketball teams. If each group had 10 more members, the ratio of their membershi

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X = y + 30 (I)

$\frac{x + 10}{y + 10} = \frac{3}{2}$

2x + 20 = 3y + 30
2x - 3y = 10 (II)
______________________________
2(y+30) - 3y = 10
2y + 60 - 3y = 10
-y = -50
y = 50

x = y + 30
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3 years ago

On average,Shane drinks 1/2 of a 6-ounce of water in 2/3 hour.How much water does she drinks in an hour.Show work

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Answer:

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Step-by-step explanation:

First dived 3 by 2 to figure out how much water she drinks in 1/3 of a hour.

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