2 years ago

‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️PLEASE PLEASE HELP I HAVE BEEN WAITING FOR OVER AN HOUR

Mathematics

1 answer:

Gnoma [55]2 years ago

6 0

I cant see the screen clearly

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Liam rode his bike to the store every day. It took him 45 minutes to get to school and 45 minutes to get home. If he rode for 3

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Answer:

1,890 minuts

Step-by-step explanation:

3 weeks = 7 days x 3 = 21 days

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Therefore, in total, he rode for 21 days x 90 minutes per day = 1,890 minutes

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3 years ago

To get a B in math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests were 82,74,82,and 74.Wha

motikmotik

Answer:

88 score.

Step-by-step explanation:

Given:

To get a B in math, Alexandria Pappas must<u> average 80</u> on five tests.

Scores on the first four tests were <em>82, 74, 82, and 74.</em>

Question asked:

What is the lowest score that she can get on the last test and still get a B?

Solution:

Let lowest score she can get on the last test = $x$

As we know:

$Average=\frac{Sum\ of \ observations}{Number\ of\ observations}\\ \\ 80=\frac{82+74+82+74+x}{5} \\ \\$

By cross multiplication:-

$80\times5=312+x \\ \\400=312+x\\Subtracting\ both\ sides\ by\ 312\\400-312=312-312+x\\88=x$

Thus, she can get 88 score on the last test to get a B in math.

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