Which expression is equivalent to 7 b + 4 b minus 1 b?
2b
4b
10b
12b
10b
Margo spends a quarter of her paycheck on a new dress, One-eighthof her paycheck on shoes, and $24 on a birthday present. If she spent $60 altogether, how much was Margo’s paycheck?
$96
$160
$216
$504
Let's start by using the information given to set up an equation:
0.25P + 0.125P + 24 = 60
Combining like terms:
0.375P + 24 = 60
Subtracting 24 from both sides:
0.375P = 36
Dividing both sides by 0.375:
P = 96
Therefore, Margo's paycheck was $96.
Which is the correct way to model the equation Negative x + 8 = 7 x + (negative 8) using algebra tiles?
1 positive x-tile and 8 positive unit tiles on the left side; 7 positive x-tiles and 8 positive unit tiles on the right side
8 positive unit tiles on the left side; 7 positive x-tiles and 8 negative unit tiles on the right side
1 negative x-tile and 8 positive unit tiles on the left side; 7 positive x-tiles and 8 negative unit tiles on the right side
8 positive x-tiles and 1 negative unit tile on the left side; 8 negative x-tiles and 7 positive unit tiles on the right side
1 negative x-tile and 8 positive unit tiles on the left side; 7 positive x-tiles and 8 negative unit tiles on the right side.
Nisha did the work below to solve an equation.
Step 1 7 b + 3.2 b minus 5 = 18.92
Step 2 10.2 b minus 5 = 18.92
Step 3 5.2 b = 18.92
Step 4 b = 3.64
In which step did Nisha make her first error?
Step 1
Step 2
Step 3
Step 4