Writing Variable Expressions
b decreased by a
b-a
|-5- (-6)|
1
The lacrosse team sold s team booster sweatshirts, 19 of them were adult sizes. Write an expression that shows how many sweatshirts were not adult sizes.
s-19
Three less than twice a number n.
2n - 3
Evaluate |-7+3|+4
8
The store clerk created a display of r rows of cereal boxes. Each row contained 16 boxes. Write an expression that shows the total number of cereal boxes on display.
16r
Sixteen more than a number m.
m + 16
|-4+2|+|7+2|
Lauren has already read b of the 6 books in the PY Dragons series. Write an expression that shows how many books Lauren has left to read.
6-b
triple b, then subtract 9 from the result
(3b)-9
|17-5| - |-2-3|
7
Andy has 8 more than 10 times the number of snowboarding trips (x) his friend took.
10x + 8
raise 10 to the 5th power, then divide r by the result
r/(105)
4-16|-1|
-12
Nadia earns 20 dollars per hour (h) walking dogs and 25 dollars per driveway (d) shoveling snow. Write an expression for how much money she will earn. Solve for how much money she would earn for walking dogs for 10 hours and shoveling 25 driveways.
20h + 25d
20(10) + 25(25)= $645