7.4.6

Last updated over 1 year ago
10 questions
1

For diagram A, decide if y is an increase or decrease relative to x. Then determine the percent increase or decrease.

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For diagram B, decide if y is an increase or decrease relative to x. Then determine the percent increase or decrease.

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2a. Draw a diagram to represent scenario a.

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2b. Draw a diagram to represent scenario b.

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Write each percent increase or decrease as a percentage of the initial amount.

3b. This year, there were 25% fewer sunny days than last year.

Hint: For percent increase it will be 100% + increase %
For percent decrease it will be 100% - decrease %

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Write each percent increase or decrease as a percentage of the initial amount.

3c. Compared to last month, there was a 50% increase in the number of houses sold this month.

Hint: For percent increase it will be 100% + increase %
For percent decrease it will be 100% - decrease %

1

Write each percent increase or decrease as a percentage of the initial amount.

3d. The runner's time to complete this marathon was 10% less than the time to complete the last marathon.

Hint: For percent increase it will be 100% + increase %
For percent decrease it will be 100% - decrease %

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4. The graph shows the relationship between the diameter and the circumference.

Label 3 more points that are on the line.

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5. Priya bought x grams of flour. Clare bought 3/8 more than that. Select ALL equations that represent the relationship between the amount of flour that Priya bought, x, and the amount of flour that Clare bought, y.

Hint: There are 2 correct equations.

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EXIT TICKET
The number of fish in a lake decreased by 25% between last year and this year. Last year there were 60 fish in the lake. What is the population this year?

If you get stuck, consider drawing a diagram.