John needs to be at school by 8:00 am. It takes 20 minutes to walk to school, 10 minutes to eat breakfast, and 20 minutes to get ready. What time does he need to get up in order to make it to school and not be tardy?
Add together the 20 minutes, 10 minutes, and 20 minutes. Subtract the minutes from 8:00 am. 7:10 pm
Add 6 to both sides. Solve for x. x=5
Divide both sides by 3.4 to solve for y. y=5
I have a cube-shaped box with sides of length 6 feet. What is the volume in feet? What is the volume in inches?
length x width x height is 6x6x6=volume in feet. 12 inches on a foot, so 6 x 12 to get one side in inches, then that number (72)x(72)x(72) to get cubic inches, In feet, 216 cubic feet, in inches 373,248 cubic inches
What is 30% of 210?
Change 30% to a decimal 0.3, then multiply 0.3 times 210. 63
What percent of 15 is 3?
Divide 3 by 15, then change to percent. 0.2 becomes 20%
Find the percent of change from 75 to 100. Is this a decrease or an increase?