Evaluating Expressions
Evaluate x+4 when x=21
25
State the absolute value and the opposite of the number: -2
AB: 2
Opposite: 2
-12 - (-20)
8
Simplify the expression:
15 + 12a - a - 24
11a - 9
Worth 1,000 points:
A truck driver is loading a truck with crates of oranges and bananas. The truck can haul no more than 3,500 pounds. Each crate of oranges weighs 9 pounds and each crate of bananas weighs 14 pounds. The truck driver has received an order for 205 crates of bananas. What is the largest number of crates of oranges that the truck driver can haul without going over the limit?
No more than 70 crates of oranges
Evaluate x/y when x=21 and y=7
3
Order from least to greatest:
-42, -20, 15, 0
-42, -20, 0, 15
-15 + -15
-30
Simplify:
-3(n + 1) + 10
-3n + 7
4d + 9 = -35
d= -11
Write the power in words and as repeated multiplication. Then evaluate
9^2
Nine raised to the second power
9x9
81
Evaluate when x= -6
-x
6
Solve:
-10(13)
-130
The sum of 13 and a number is 29
is 16 a solution?
13 + n=29
yes
Solve:
-6n < -72
n > 12
Evaluate:
12+16/4
16
-16 + 4
-12
Write the verbal sentence as an inequality and solve:
Nine times the sum of a number and 1 is greater than -18.
9(n+1) > -18
n> -3
Solve:
-2= h + 10
-12
Solve:
4c+8=2(2c+3)
No solution
Evaluate:12 + (4-2)^2
16
The balance in your savings account is $45. You withdraw $30. THen you deposit $35.50. What is your new balance?
$50.50
Find the mean, median, and mode of these numbers:
6, 8, 6, 6, 7, 9, 7
Mode: 6
Mean: 7
Median: 7
Write and simplify an expression for the area of the rectangle:
one side is 9 the other is 2x+1
(18x+9) square units
You are working two jobs to save money for a vacation. You earn $6 per hour babysitting and $8.50 per house mowing. Next week, you are scheduled to work 15 hours babysitting. How many hours must you work mowing lawns so that you can earn a total of $175 next week?
10 hours