Page 218 - Algebra 1

23. Multi-Step A border is being built along two sides of a triangular garden. The third
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24. Multi-Step The temperature of a liquid is 72°F. The first step of a set of instructions
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25. Analyze Megan and Molly have an age gap of 6 years. Megan is older. If Molly is
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8 years old, then how old is Megan?
26. Fuel Costs It cost Rayna $73.25 to fill her truck with gas, not including tax.
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b. How many gallons of gas did she buy?
27. Expand the expression (5p - 2c)4xy by using the Distributive Property.
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side is next to the house.
x
Garden
House
a. The second side of the garden is 4 feet longer than first side. Write an expression for the length of the second side.
b. If the total amount of border is 28 feet, how long are the sides of the garden that are not next to the house?
requires that a scientist cools the liquid by 15°F. The second step requires that she warms it until it reaches 85°F. By how many degrees will she warm the liquid in the second step?
The gasoline tax is $0.32 per gallon. If the price for gasoline including tax is $3.25 per gallon, how many gallons of gas did she buy?
a. Write an equation to represent the problem.
Solve each proportion.
28.
(31)
30.
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7 = 1 *29. 1 = -3 __ __
x 0.5 (31) x x+2
Multi-Step How far Sam bikes in two hours depends on the rate at which he rides. His distance is represented by the equation y = 25x, where x is the time in hours and y is the distance in miles.
a. Copy and complete the table and graph the solutions.
b. Connect the points. What do you notice?
c. Predict If Sam rides at the same rate, how long will it take him to ride 80 miles?
x
1
2
3
4
5
y
Lesson 32 203