Chapter 3
Solve each equation
-16 = 6a - 4
What is..... -2
Find each product. Write in simplest form.
-6/7 * 2/7 =
What is -12/49
Write the ratio as a fraction in simplest form.
6 ladybugs out of 27 insects
What is 2/9?
Use the percent proportion to solve each problem.
72 is what percent of 160?
What is 45%?
Tell whether each statement is sometimes, always or never true.
1.) A back to back stem-and-leaf plot has two sets of data.
2.) A basic stem-and-leaf plot has two keys.
1.) What is always?
2.) What is never?
Solve the equation.
8 = -n/7 - 5
What is ..... -91
Find each product. Write in simplest form.
a/b * 5b/c =
What is 5a/c?
Find the percent of each number.
90% of 80
What is 72?
The average monthly temperatures of Tucson, Arizona, and Hot Springs, New Mexico, are listed in the stem-and-leaf plot.
1.) What is the median temperature for each city?
Page 635
What is Tucson; 69F, Hot Springs; 61F?
Find the 23rd term of the sequence 16, 17, 18, 19...
What is 38?
Solve
4a/5 * 3/a =
What is 2 2/5?
Solve each proportion.
5/h = 10/30
What is 15?
Find the simple interest to the nearest cent.
$4,500 at 5.5% for 4 1/2 years
What is $1,113.75?
Page 642
# 24
What is 9.1?
An airplane flying at 500 miles per hour leaves Minneapolis. One-half hour later, a second airplane leaves Minneapolis flying in the same direction at a rate of 600 miles per hours. How long will it take the second airplane to overtake the first?
What is 2.5 hours?
Find the mean, median and mode for each set of data.
41, 37, 43, 43, 36
What is?
mean 40
Median 41
Mode 43
Determine whether the set of numbers in the table are proportional.
Jars 3 9 12 15
Jelly beans. 18 36 54 72
What is no?
Find the percent of change.
1.) from $50 to $67
2. From 45 in to 18 in
1.) What is 34%; increase
2.) What is 60%; decrease
Express the fraction as a percent.
1/5
What is 20%?
What is the rate, in miles per hour, of a balloon that travels 60 miles in 4 hours?
What is 15 mph?
Serena received the following scores on her first six math test: 90, 68, 89, 94, 60, and 93. Which measure of data might she want to use when describing how she is doing in math class?
A) Mode
B) Median
C) Mean
What is B Median?
Express each percent as a fraction in simplest form.
120%
What is 120/100 = 6/5 or 1 1/5?
Jackson, Mississippi, receives an average of 6.0 inches of precipitation in April. In September, the average precipitation is 3.2 inches. What is the percent of change in precipitation from April to September?
What is -46.7%?
Express the fraction as a percent.
2/3
What is 66 2/3%?