Josie plotted 3 points from the equation y = 2x on this coordinate grid. She drew a straight line through the points.
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The unit rate represents 2 miles in 0.25 hour is 8 miles per hour
Step-by-step explanation:
Let us revise the meaning of rate and unit rate
1. A rate is a ratio that is used to compare different types of quantities
2. A unit rate shows how many units of the first type of quantity
corresponds to one unit of the second type of quantity
Examples:
Cost per item
Distance per hour
∵ Zephra ran 2 miles in 0.25 hour
- To find the unit rate make the denominator of the ratio = 1
∵ The unit rate =
- Divide up and down by 0.25
∵ 2 ÷ 0.25 = 8
∵ 0.25 ÷ 0.25 = 1
∴ The unit rate =
∴ The unit rate = 8 miles per hour
The unit rate represents 2 miles in 0.25 hour is 8 miles per hour
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