Equations and Inequalities

By: James Weir

Equations

1: Lisa is cooking muffins. The recipe calls for 7 cups of sugar. She has already put in 2 cups. how many cups does she need to put in?

x+2= 7 x=5

-2 -2

2:At a restaurant, Mike and his 3 friends decided to divide the bill evenly. If each person paid $13 then what was the total bill?

x/4=13 x=$52.00

x4 x4

Inequalities

1:If one roll of masking tape costs $1.15, how many rolls can Max buy with at least $5.75?

15 x X < 5.75 x<5

2: Max buys a package of 4 batteries for under $2.52 . What is the price range for each Battery? X x 4<2.52 x< .63

How to solve Problems 1 and 2 in inequalities

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