honors 3­4.notebook
October 21, 2016
Honors 3-4
Learning Target: Students will be able to substitute values into
a formula
and evaluate.
Formula: an equation that shows relationship between
quantities that are represented by variables.
Examples:
d=rt
i=prt
P=2l +2w
A=lw
C=πd
Solving formula problems:
1. Write the formula
2. Substitute known values.
3. Solve to find unknown value.
4. Write proper units.
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honors 3­4.notebook
October 21, 2016
1. Suppose you ride your bike 18 miles in 3 hours. Use the formula d= rt to find your average speed.
2. Suppose you ride your bike for 21.6 miles at 5.4 miles per hour. Use the formula d=rt to find the amount of time you rode.
3. Use the formula F= n/4 + 37 to find the temperature in Fahrenheit when a cricket chirps 76 times (n represents cricket chirps).
4. Find the perimeter of a rectangular table top with a length of 14.5 m and a width of 8.5 m. Use the formula P=
2l +2w
5. Find the length of a rectangle if the width is 7.2 m and the perimeter is 34.4 m. Use the formula P=2l +2w
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honors 3­4.notebook
October 21, 2016
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