Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
100
135 seconds in minutes.
What is 2.25 min.
100
3/7 = 9/x
x = 21
100
See Board: What angle corresponds with angle B?
Angle E.
100
What percent of 75 is 15?
20%
100
Find the percent change. Original amount: 9 New amount: 6
decrease; 33%
200
4lb 7 oz in oz.
What is 71 oz.
200
-8/10 = y/5
y = -4
200
See Board: Find the missing length.
y = 40
200
What is 63% of 150?
94.5
200
An employee was hired at a wage of $8 per hour. After a raise, the employee earned $8.75 per hour. What was the percent increase?
about 9%
300
2.25 mi in yards.
What is 3960 yards.
300
b + 3 / 7 = b - 3 / 6
b = 39
300
A particular rocket kit uses the scale 1:144. The actual rocket is 168 ft tall. How tall will the model rocket be when completed?
1 ft 2 in.
300
80% of what number is 20?
25
300
Find the percent error. You estimate that your friend's little brother is about 8 years old. He is actually 6.5 years old.
about 23%
400
A bread slicer runs 20 h per day for 30 days and slices 144,000 loaves of bread. How many loaves per hour are sliced.
240 loaves
400
5 / 2c - 3 = 3 / 7c + 4
c = -1
400
A model tractor-trailer is shaped like a rectangular prism and has a width of 2 in., a length of 9 in., and a height of 4 in. The scale of the model is 1 :34. How many times the volume of the model is the volume of the actual tractor-trailer?
39,304 times
400
You deposit $150 in a savings account that earns a simple interest at a rate of 5.5% per year. How much interest will you have earned after 4 years?
$33
400
Find the minimum and maximum possible measurements. The length of an onion cell is 0.4 mm to the nearest tenth of a millimeter.
0.35 mm; 0.45 mm
500
If a baseball travels 90mi/h, how many seconds does it take to travel 60 ft?
5/11 s or 0.45 s
500
A particular computer takes 15 min to download a 45-min Tv show. How long will it take the computer to download a 2-h movie?
What is 40 minutes.
500
You have a painting that is 30 in. wide and 22.5 in tall. You would like to reproduce it on a sheet of paper that measures 8.5 in. by 11 in., leaving at least a 1-in margin on all four sides. What scale should you use if you keep the sheet of paper in the normal upright orientation. Assume the reproduction will be as large as possible.
1: 4.6
500
Marcia buys a dress that is on sale for 15% off its original price. She uses a store coupon to obtain an additional 10% off the sale price. Marcia pays $91.80 for the dress. What was the original price of the dress?
$120
500
The side lengths of a rectangle are 7.5 m and 18.5 m measured to the nearest half of a meter. What is the greatest possible percent error in finding the area of the rectangle?
about 5%
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