Question

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1.What is the value of the expression Negative 225 divided by (negative 15)?
–25
–15
15
25

2.Louise used this figure to model the expression 20 divided by 4.

A number line going from 0 to 20. An arrow goes from 4 to 8, from 8 to 12, from 12 to 16, and from 16 to 20.

What error did Louise make in her model?
The small arrows are pointed in the wrong direction.
The small arrows should all end in the same place as the large one.
The arrows should start at zero.
There should be one large arrow and 20 small arrows.

3.Alicia drove 265 miles in 5 hours. What is the average rate that she traveled?
49 miles per hour
51 miles per hour
53 miles per hour
55 miles per hour

4.Which situation is best modeled with a division expression?
the total cost of 4 pints of strawberries that sell for $3 each
the cost per pint of 3 pints of blueberries if the total cost was $6
the cost per pint of raspberries after applying a $1 coupon if the normal price was $3 each
the total cost of a pint of blackberries that sells for $3 and a pint of cherries that sells for $4

5.A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales.

Empty Scale Weight Displays
Scale 1
–1 ounce
Scale 2
–2 ounces
Scale 3
0 ounces
Scale 4
–1 ounce

What is the average error in the scale displays?
–4 ounces
–1 ounces
0 ounces
1 ounce

Answer 1

Answer:

-225/-15 = 15

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Answer 2

Answer:

federalism is a system of government.