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laiz [17]
4 years ago
8

When Jeremy surveyed thirty 7th-grade students at the community pool, he found that 2/15 had not read at least one book during J

uly. He knows there are about 200 7th-grade students in his community, so he infers that about 40 of them did not read any books in July. Is that a good inference? Explain.
Mathematics
2 answers:
WITCHER [35]4 years ago
4 0

.....Jeremy did not make a good inference. The ratio is not in proportion to 2/15. The correct inference would be about 26 students who did not read any books in July. The sample might be biased since it was limited to those at the pool....

Valentin [98]4 years ago
3 0

Answer:

Jeremy did not make a good inference. The ratio is not in proportion to 2/15. The correct inference would be about 26 students who did not read any books in July. The sample is biased since it was limited to those at the pool

Step-by-step explanation:

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Shtirlitz [24]

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3 years ago
Select all the expressions that are equivalent to 4-3.
Leviafan [203]

Answer:

See below.

Step-by-step explanation:

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3 years ago
Her 6. Karen buys a sweatshirt for $30. The sales
Fynjy0 [20]

Answer:

32.1

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7 0
3 years ago
In a certain store, the regular price of a refrigerator is$600. How much money is saved by buying this refrigeratorat 20 percent
Ira Lisetskai [31]

Correct option is A. Money saved is  ′ $6 ′ .

Given

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i) Buying the refrigerator at 20 percent off regular price

Final Discount in this case = 20% (Regular price of the refrigerator)

= 20 / 100 × 600

​= $120

ii)  Buying it on sale at 10 percent off regular price and an additional 10 percent off sale price

Discount for the sale = 10% (Regular price of the refrigerator)

=  10/100  × $600

= $60

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= $600 − $60

= $540

Final Discount in this case = 10% (Sale price of the refrigerator)

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= $54

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= $60 − $54

= $6

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4 0
1 year ago
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Mandarinka [93]

Answer:

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y - 2 = 3(x - 1) and

y - 2 = 3x - 3 and

y = 3x - 1 OR in standard form, we will put the x and y terms on the same side of the equals sign, separated from the constant:

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3x - y = 1 which is the third choice down.

4 0
3 years ago
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