Page 159 - Algebra 1

*12.
(22)
The circle graph shows the amount of money Will spent on different snacks at a store. If Will spent $12, how much money did he spend on each item?
strawberries 30%
Will’s Spendings
two apples 10%
peanut butter 40%
13.
(20)
14.
(16)
Graph the ordered pair on a coordinate plane (2, 1).
Probability A spinner is divided in equal sections and labeled as shown in
the diagram.
a. If x is an even number, what is the probability the spinner will land on an
even number?
b. If x is an odd number, what is the probability the spinner will land on an odd number?
c. If x = 20, what is the probability the spinner will land on a number less than 20?
Multi-Step Each camp counselor at Camp Wallaby walked 6 miles for a health and fitness activity. Each camper walked 2 miles. The camp leader paid $0.50 into a Fun Day account for every mile walked. Write an expression to represent the total amount of money earned from walking by counselors and campers.
Verify Are the expressions below equivalent? Explain. (11w4 · 3z9)(2w7z2) 66w11z11
Contests Miguel entered a contest offering prizes to the top 3 finishers. The probability of winning 1st is 12%, the probability of winning 2nd is 18%, and the probability of winning 3rd is 20%. What is the probability that Miguel will not win any prize?
juice 20%
15.
(15)
16.
(9)
17.
(14)
18.
(14)
Retailing Use the circle graph.
a. What is the probability that a randomly chosen person who
purchased a shirt paid more than $40.00?
b. What is the probability that a randomly chosen person who purchased a shirt paid $30 or less?
Shirt Sales
45 people paid $25–$30
x
87
76
65
10
12
23 54
23 people paid $10–$15
8 people paid $40 or more
24 people paid $31–$35
19.
(12)
20.
(11)
Construction To calculate the amount of fencing for a rectangular area, Kelvin uses the formula P = 2(l + w). Bonnie uses the formula P = 2(w + l). Will their calculations of the perimeter be the same? Explain.
_4⎡_3 _8⎤ Write Explain how to simplify ÷ ⎢ - · - .
7 (8)(3) ⎣⎦
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Saxon Algebra 1