Translating Expressions
the sum of a number and 5
n + 5
Identify the variable terms, coefficients, and constants in the expression: 4e + 2e + 7 + 3e
Var. Terms: 4e, 2e, 3e
Coefficients: 4, 2, 3
Constants: 7
Simplify
19 - 3 x 4
7
Roy and 2 friends are at a game center. Each person buys a hot dog for $3, fries for $2.49, and a drink for $2.50. They also have a coupon for $1 off each drink. Write an expression to represent the total cost. Then find the total cost.
3(3 + 2.49 + 2.50) - 3
32 + 3(2.49) + 3(2.50 - 1)
= $20.97
x + 2, where x = 5
7
the product of 9 and a number
9n
Identify the variable terms, coefficients, and constants in the expression: 7 + 10g + 3e, + 54
Var. Terms: 3e, 10g
Coefficients: 3, 10
Constants: 7, 54
Simplify
30 - 28 ÷ 4 ᐧ 2
16
Define a variable for the unknown and write a phrase as an algebraic expression.
Four and one-half times the number of gallons.
4½g
4x + 2, where x = 3
14
nine plus a number squared
9 + n2
Evaluate the power 55
5 x 5 x 5 x 5 x 5
=3,125
Simplify
23 - 1 + 9
16
A plumber charges $50 to visit a house plus $40 for every hour of work. Define a variable to represent the unknown quantity. Then write an expression to represent the total cost of hiring a plumber.
h = hours
50 + 40h
6b, where b = 1/2
3
17 + 2n
the sum of 17 and twice a number
Evaluate the power (2/5)3
2/5 x 2/5 x 2/5
= 8/125
Simplify
__63__
16 - 7
24
A gymnastics studio charges an annual fee of $35 plus $20 per class. Define a variable to represent the unknown quantity. Then write an expression to represent the total cost of taking classes.
c = number of classes
35 + 20c
(5x - 4y), where x = 4 and y = 1/2
18
2/3n
two thirds of a number
Select all expressions that are equivalent to
6 x 6 x 6 x 6
a) 64
b) 46
c) 66
d) 216
e) 1296
64
1296
Simplify
56 ÷ 8 ᐧ (22 + 1)
35
Write an expression for the points that Nate scored.
Nate scored 5 more than twice the number of points as Jake scored.
2p + 5
b + (5c - 2d)2 when b= 10, c = 4, d = 3
206