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prisoha [69]
3 years ago
13

Mrs. Robbins has stickers and erasers in her desk. The ratio of stickers to erasers is 3 to 8. She has 12 stickers. *

Mathematics
2 answers:
Nuetrik [128]3 years ago
4 0
Given:
ratio of stickers to erasers: 3 to 8
She has 12 stickers.

3:8 = 12:x
3x = 8*12
3x = 96
x = 96/3
x = 32 erasers.

Mrs. Robbins has 32 erasers.

Oliga [24]3 years ago
4 0
Stickers : erasers = 3 :8

12 : e = 3:8

12/e = 3/8

3*e = 12*8

e = 12*8/3

e = 32

Erasers = 32. 
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Each year Lizzie’s school purchases student agenda books, which are sold in the school store. This year, the school purchased 35
Stells [14]

The school can charge $7.54 for each agenda book.

Step-by-step explanation:

Given,

Purchase price of 350 books = $1137.50

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Therefore;

The school must sell 350 books for $2637.50

Thus,

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The school can charge $7.54 for each agenda book.

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5 0
3 years ago
Jim buys two boxes of apples. 90% of the total apples are ripe.
Sedaia [141]
Jim buys 2*15=30 apples
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3 0
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Write a proportion to find how many points x a student needs to score on a test worth 50 points to get a test score of 78%.
olganol [36]
The answer is:  "39 points" .
_______________________________________________________
Explanation:
_______________________________________________________
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_______________________________________________________

To solve for "x" ; 
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Look at the denominators:  50 * (what value?) = 100.

→ "100 ÷ 50 = 2" .

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x * 2 = 78 ; 

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Divide each side of the equation by "2" ; to isolate "x" on one side of the equation ; and to solve for "x" ;
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4 0
3 years ago
Hannah claims that people who live in southern states spend 9 hours more per week outside than do people in northern states. She
Aneli [31]

Answer: Hello your question is incomplete below is the missing part

Which of the following statements about Hannah’s claim is supported by the interval?

A) Hannah is likely to be incorrect because the difference in the sample means was 18.6−14.4=4.218.6−14.4=4.2 hours.

B) Hannah is likely to be incorrect because 9 is not contained in the interval.

 C)The probability that Hannah is correct is 0.99 because 9 is not contained in the interval.

 D)The probability that Hannah is correct is 0.01 because 9 is not contained in the interval.

 E)Hannah is likely to be correct because the difference in the sample means (18.6−14.4=4.2)(18.6−14.4=4.2) is contained in the interval.

Answer :  Hannah is likely to be incorrect because 9 is not contained in the interval. ( B )

Step-by-step explanation:

The statement that is supported by the interval in Hannah's claim is that

Hannah is likely to be incorrect because 9 is not contained in the interval.

5 0
3 years ago
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