Page 189 - Algebra 1

Lesson Practice
a.
(Ex 1)
b.
(Ex 2)
c.
(Ex 3)
d.
(Ex 4)
e.
(Ex 5)
Solve for n: Solve for x:
3m + 2n = 8.
3x + 2y = 8 + x.
_9
Temperature The formula F = 5 C + 32 expresses a Fahrenheit
temperature in terms of Celsius temperature. Find the Celsius temperature when the Fahrenheit temperature is 86°.
Geometry The formula for the volume of a rectangular prism with length l, width w, and height h, is V = lwh. Find the height in inches of a rectangular prism with volume 6 ft3, width 12 in., and length 24 in.
Traveling Costs The fuel economy rating of a vehicle is determined by the formula F = _m . In the formula, F is fuel economy, m is miles
Hint
Since the question asks for gallons, the first step is to solve the formula for g.
*1.
(29)
3.
(24)
*4.
(29)
5.
(25)
*6.
(26)
*7.
(29)
*8.
(17)
Solve3x+2y=5-yfory. *2. Solve-2y+6y-x-4=0fory. (29)
Average Cost Boris uses a coupon for $35 off any framing order of $50 or more. He wants to frame 5 photographs. With the coupon it will cost $107.50 not including tax. What is the average cost to frame a photograph without the coupon?
Multiple Choice The floor area of recreation center will be a rectangle with a length of 130 feet and a width of 110 feet. Which formula can be used to find the area of the recreation center?
A A = s2 B A · l = w
C A = lw D A = _1 ab 2
Give the domain and range of the relation. {(9, 3); (8, 1); (8, 2); (8, 3); (7, 0); (7, 4); (6, 2)}
Multiple Choice Which operation should be performed first when solving the multi-step equation 12x + 6(2x - 1) + 7 = 37?
A Divide both sides of the equation by 12.
B Multiply (2x -1) by 6.
C Add 1 to both sides of the equation.
D Subtract 37 from both sides of the equation.
Write Explain how to solve 5x + 4z = 10z - 2x for x.
Basketball Lee’s basketball team played 22 games this season. Lee scored an
average of t three-pointers and s two-pointers per game during the season. Write an expression to show how many total points he scored during the season.
g
traveled, and g is gallons of fuel. Felicia’s car has a fuel rating of
28 miles per gallon. Her trip is 350 miles. How many gallons of fuel does she need?
Practice
Distributed and Integrated
174
Saxon Algebra 1