Page 387 - Algebra 1

Lesson Practice
Find the least common multiple of the numbers.
(Ex 1)
a. 16 and 42 b. 8, 12, and 17 Find the least common multiple of the algebraic expressions.
c. 6c2d7 and 15c5d d. 4k4p3n2, 5k2p3, and 20n4k3 (Ex 2) (Ex 3)
Find the least common multiple of the polynomials.
(Ex 4)
e. (3x+5)and(2x-7) f. (15c2 -3c)and(35c-7)
g. Find the LCM of (8f5 - 24f2) and (18f3 - 54f4).
h. Production Design Every 24th backpack produced has a green stripe.
(Ex 5) Every 60th backpack produced has a big yellow dot. Every 36th backpack
produced has a blue diamond. How many backpacks have been produced when a backpack has a green stripe, a big yellow dot, and a blue diamond?
Practice
Distributed and Integrated
Solve each equation for the variable indicated.
1. s+4t=rfors 2. 3m-7n=pform
(29) (29)
__ __ 3. 3 = a + 5 4. 3 = 1
5. 50 to 20 6. 12 to 96 (47) (47)
*7. Write Explain how the processes for finding the LCM and the GCF of two (57) numbers differ.
*8. Find the LCM of 24 and 84. (57)
9. Find the GCF of 24 and 84. (38)
10. Draw the horizontal and vertical lines passing through the point (6, 5). (41)
11. Multi-Step The graph at right shows the temperature measured at
Solve each proportion.
(36) 4 21 (36) y - 3 9
Find each percent change. Tell whether it is a percent increase or decrease.
(44)
different times during a summer day. A weak cold front passed 90
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Saxon Algebra 1
through in the early afternoon.
a. What was the rate of increase in temperature from 6:00 in the
morning until noon?
b. What was the rate of change in temperature from noon until 2:00 p.m.?
c. What would have been the rate of increase in temperature from 6:00 a.m. to 4:00 p.m. if those were the only times at which anyone had measured the temperature?
80 70
6 a.m.
10 a.m. 12 p.m.
Time of Day
4 p.m.
Temperature (°F)