1.at a part time job, marcus earns $8.50 per hour. Write and solve an equation to find the number of hours he has to work to earn $102.
2007-02-23 08:01:47 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
assign a variable
let x = the number of hours worked
8.50x = 102
divide both sides of the equation by 8.5
x = 12
therefore marcus must work 12 hours
2007-02-23 08:08:48 · answer #1 · answered by Ray 5 · 0⤊ 0⤋
At a part time job, marcus earns $8.50 per hour. Write and solve an equation to find the number of hours he has to work to earn $102.
Therefore, x=12
2007-02-23 16:13:55 · answer #2 · answered by PH 2 · 0⤊ 0⤋
$ 102 divided by $ 8.50=
8.5 goes into 102
85 goes into 1020
85 goesinto 102 1 time 1 x 85=85
102-85=17 bring down the 0
85 goes into 170 2 times 2 x 85= 170
answer is 12
2007-02-23 16:09:26 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
Work with your Units....
a) money/time ($8.50/hr)
b) You need to find hours (time) and your are given a result of $102 (Money)
if you divide your money (b) by your money/time you will get time
So think of it this way: What Time (X) multiplied by money/time equals $102
X * ($8.50)=$102
Solve for X
2007-02-23 16:10:37 · answer #4 · answered by DSF 2 · 0⤊ 0⤋
8.50x = 102
x = 102/8.5
x = 12, 12 hours
2007-02-23 16:05:50 · answer #5 · answered by leo 6 · 0⤊ 0⤋