1.12 Unit Test Expressions And Problem Solving Part 1
Question: Simplify.
−6+{14+2[60−9(1+3)]}
Answer: 56
Question: Simplify.
5/4+4(3/4−1/2)^2
Answer: 3/2
Question: Which expression represents the phrase, “one third the sum of 12 and a number”?
Answer: 1/3 (12+x)
Question: The Garza family drives to a state park. The remaining distance, in miles, to reach the state park is 285−60x, where x represents the number of driving hours.What does each part of the expression represent?Drag the answer into the box to match each part of the expression.
Answer: 285- the total distance to the state park
60x- the number of miles driven after x hrs
60- the number of miles driven after 1 hr
Question: The length of a rectangle is 2 units shorter than one-fifth of the width, x.
Which expression represents the perimeter of the rectangle?
Answer: 12x/5-4
Question: Cindy’s age, x, is 3 times her age 6 years ago.
Which equation represents the statement?
Answer: x=3(x-6)
Question: The product of a number, x, and six is four more than the product of the number and three-eighths.
Which answer represents this situation?
Answer: 6x=3/8x+4
Question: Allen works 8 hours per day and earns $10 per hour. Ben works 4 hours each day and earns the same amount as Allen.
How much money does Ben earn each hour?
Drag the steps in the correct order to solve the problem.
Answer: identify- ben’s wage is the unknown
strategize- let x= ben’s unknown wages
set up- 8(10)=4(x)
solve- x=20
check- 8(10)=4(20)
Question: The next train will arrive in 32 minutes and 30 seconds.
In how many seconds will the next train arrive?
Answer: 1,950 seconds
Question: A machine factory produces 2 parts per second. One shift is 10 hours long.
What is the production rate in parts per shift?
Enter your answer in the box.
Answer: 72000 parts per shift
( don’t add the “,” you would normally add !! )