IM 7.6.11 Practice: Using Equations to Solve Problems

Find the value of each variable.
[math]a\cdot3=-30[/math]
[math]-9\cdot b=45[/math]
[math]-89\cdot12=c[/math]
[math]d\cdot88=-88,000[/math]
Match each equation to its solution and to the story it describes.
The baby giraffe weighed 132 pounds at birth. He gained weight at a steady rate for the first 7 months until his weight reached 538 pounds. How much did he gain each month?
Six teams are out on the field playing soccer. The teams all have the same number of players. The head coach asks for 2 players from each team to come help him move some equipment. Now there are 78 players on the field. Write and solve an equation whose solution is the number of players on each team.
A small town had a population of 960 people last year. The population grew to 1200 people this year.
By what percentage did the population grow?
The gas tank of a truck holds 30 gallons. The gas tank of a passenger car holds 50% less.
How many gallons does it hold? 
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– GeoGebra Classroom Activities, IM 6 – 8 Math

Information: IM 7.6.11 Practice: Using Equations to Solve Problems