Tell whether the value of the expression is positive or negative
without evaluating.
Tell whether the value of the expression is positive or negative without evaluating.
Learning check over multiplying and dividing integers.
Tell whether the value of the expression is positive or negative without evaluating.
Tell whether the value of the expression is positive or negative without evaluating.
Tell whether the value of the expression is positive or negative without evaluating.
Tell whether the value of the expression is positive or negative without evaluating.
You lose 3 points every time you forget to write your name on a test. You have forgotten to write your name 6 times. What integer represents your change in points from forgetting to write your name?
You are swimming each 25-yard length of a swimming pool 3 seconds faster than your personal best. What integer represents your change in time of your personal best after 600 yards?
Pete owes his brother $75 from five weeks of borrowing money.
a. What is the mean(average) amount Pete borrowed from his brother each week?
Pete owes his brother $75 from five weeks of borrowing money.
b. If Pete continues to borrow money, how much money will he owe after three more weeks?
Seven days ago, the gas tank on Rosa’s vehicle was filled with 25 gallons of gasoline. Today there are 11 gallons of gasoline.
a. What integer represents the change of gasoline in the past seven days?
Seven days ago, the gas tank on Rosa’s vehicle was filled with 25 gallons of gasoline. Today there are 11 gallons of gasoline.
b. What is the mean (average) change in gasoline in gallons per day?
Seven days ago, the gas tank on Rosa’s vehicle was filled with 25 gallons of gasoline. Today there are 11 gallons of gasoline.
c. What is the fuel efficiency, in miles per gallon, of Rosa’s car if she drove 490 miles in the past seven days?