1. Write the 4.5 miles in 1.5 hr ratio as the unit rate. * 1 point
4.5/1.5
1.5/4.5
3/1
there is no unit rate to be determined
2. Write the unit rate for typing 13 words in 1/4 minute. *
1 point
13/1
39/1
1/13
52/1
3. What ratios will make relationship proportional? *
1 point
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16/22 and 17/23
16/22 and 24/33
11/8
4. The old sand box (6 ft wide and 17 ft long) will be replaced proportionally larger sand box. What are possible dimensions of the new box?
1 point
6 ft by 34 ft or 6 ft by 12 ft
18 ft by 51 ft or 24 ft by 68 ft
17 ft by 6 ft or 34 ft by 12 ft
5. Calculate the unit rate. *
1 point
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144 ft / 3s
48 s in 3 ft
48 ft in 3 s
6 - 7. Calculate the unit rate. *
1 point
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54 mi per hr
53 mi per hr
52 mi per hr
7 - 7. The car covered 752 mile in 14 hours. What statement can describe the last hour change? *
1 point
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The car keeps the same speed and travels proportionally.
The car reduced the speed and the mileage is not proportional to hours
The car increased the speed and the mileage is not proportional to hours
8. Which of the following situations indicates the better buy? *
1 point
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15 gallons of gas for $52 is slightly cheaper
7 gallons of gas for $24.50 is less expensive
there is no better buy between these two offers
9. Which of the following situations indicates the better buy? *
1 point
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2 sweatshirts for $60
10 sweatshirts for $320
10. There are two rooms on the floor. What statement describes how the dimensions are related?
2 points
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The dimensions are not proportional because 10+16 is not equal to 15+24
The dimensions are not proportional because 24 cannot be evenly divided by 16
The dimensions are proportional because 24/16 = 15/10
The dimensions are proportional because 15/1 is the unit rate for the areas

ratios represent a pattern or relationship that can be scaled.

equivalent ratios are pairs of ratios that represent the same relationship between quantities, and can be generated by multiplying or dividing both quantities in the ratio by the same factor.

in this lesson, students will use double number lines and ratio reasoning to solve ratio problems. by partitioning double number lines into proportionate intervals, students will build an understanding of equivalent ratio relationships as those that are generated by multiplying or dividing two related quantities by the same number. this lesson will build upon students' prior understanding of multiplicative comparisons, number line reasoning and equivalent fractions (while highlighting the difference between equivalent fractions and equivalent ratios); and will build toward future work in this unit on building ratio tables, and work in future grades in proportionality, scaling, and expressing and graphing linear functions.

step-by-step explanation:

ratios represent a pattern or relationship that can be scaled.

equivalent ratios are pairs of ratios that represent the same relationship between quantities, and can be generated by multiplying or dividing both quantities in the ratio by the same factor.

in this lesson, students will use double number lines and ratio reasoning to solve ratio problems. by partitioning double number lines into proportionate intervals, students will build an understanding of equivalent ratio relationships as those that are generated by multiplying or dividing two related quantities by the same number. this lesson will build upon students' prior understanding of multiplicative comparisons, number line reasoning and equivalent fractions (while highlighting the difference between equivalent fractions and equivalent ratios); and will build toward future work in this unit on building ratio tables, and work in future grades in proportionality, scaling, and expressing and graphing linear functions.

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract

when the daily mileage is greater than 40 miles, unlimited mileage plan will save you money. 40 miles is the break-even point.

step-by-step explanation: