Last week Betsy made 80 on her quiz.This week she made 76. What percent of decrease in her score

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Answer 1

Answer:

Answer:

make better picture

Step-by-step explanation:

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Please answer the following, thanks!1. Jamal has 1,240 songs on his MP3 player, and 40% of the songs are rock songs. How many of the songs are NOT rock songs? 2. Rianda bought 32 apples. She set aside 25% to eat and divided the rest equally among 6 pies. How many apples are in each pie? 3. The math class has a set of 40 calculators, and 85% of the calculators have working batteries. How many calculators need new batteries?
Answer as mixed number ( if possible) 1/3 divided by 3/5

The answer? i don’t understand this.

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You are simplifying the equation by plugging the numbers in.
$10 * 5 + \frac{ {4}^(2) }{4}$
10•5=50,
$4 {}^(2) + 16$
$50 + (16)/(4)$
$(16)/(4) = 4$
50+4=54

The answer is 54

2. Drew read 120 pages of his book, which was 0.60 of the book. How many pages are in the book?

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I think that you would add 120 the amount of times to reach 1 whole which is 1.0 so the answer would be 480

Laticia randomly selected 25% of the seventh-grade students in her school an asked them their favorite season.Of the students surveyed,51 chose summer as their favorite season. Based on the data, what is the most reasonable prediction of the number of seventh-grade students in her school who would choose summer as their favorite season.

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about 204 students would choose summer , I found this because 25% is one quarter of a whole and to get the whole you multiply by four so take 51 and multiply by four to get 204

90 is one tenth of what?

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90 is a tenth of 900. You need ten 90's to make 900.

Explaon two ways to find the sale price of an item marked 30% off

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Answer:

Step-by-step explanation:

1) First take the price of the item, let's say it is $10, and multiply it by 0.7. This will give you the price of the item AFTER the sale price is already taken off.

$10 x 0.7 = $7

2) Another way is to multiply the price by 0.3. Take that number and subtract it from the full price to get your discounted price.

$10 x 0.3 = $3

$10 - $3 = $7

Alexis reads 125 pages or about 45% of her book. How many total pages are in the book? Please explain

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278. I divided 125 by .45 and it gave me roughly 278 :)

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HELPPP MEEE!!! Here is another question I got way more coming!!!!!!

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If a 10-foot piece of electrical tape has 0.037 feet cut from it,then what is the new length of the tape

I need to simplify the circled questions and explain how I got my answers.