1.The length of a ship model is 3% of the length of the actual ship. The model is 1.5 M long. How long is the actual ship? ____M
2. Students at Lincoln Middle School sell gist wrap to raise money for student activities. The school keeps 40% of sales. How many dollars worth of gift wrap must be sold to make $1,000?
We have to find 100% of the number. We can use proportion to get it 3% -----------1.5m 100% -------- x crossmultiply now 3*x=1.5*100 3x=150 /:3 divide both sides by 3 x=50m
2. Similar situation 40% ------------1000 100% -----------x crossmultiply 40*x=100*1000 40x=100000 /:40 x=2500 - its the answer
