Bob paid $3 less than Tim at a local pizza parlor. Together they spent $7.80. How much did Bob spend at the local pizza parlor?
$2.40
$4.50
$4.80
$5.40
$8.40
2006-10-30 14:30:59 · 9 answers · asked by soccergrl8128 1 in Science & Mathematics ➔ Mathematics
Subtract 3 from 7.80 to get 4.80. Then divide it by 2 to get $2.40. Bob paid 2.40 and Tim paid 5.40 (3 bucks more).
2006-10-30 14:35:13 · answer #1 · answered by Sarah Hinley 2 · 0⤊ 0⤋
The amount each spent is currently unknown so we will let one of them be x.
If we let Tim's amount be x, then Bob's amount is x-3
Together they spent $7.80 so our equation becomes:
x + (x-3) = 7.80
2x -3 = 7.80
2x = 10.80
x = 5.40
This is Tim's amount and Bob spent 3 dollars less.
$5.40 - $3 = $ 2.40
2006-10-30 14:42:12 · answer #2 · answered by Uncle Bill 2 · 0⤊ 0⤋
Hi, the answer is 2.40. Tim spent 5.40, or $3 more. 5.40 + 2.40 = 7.80, the total. Good luck!
2006-10-30 14:43:06 · answer #3 · answered by meatpiemum 4 · 0⤊ 0⤋
where t = $ tim paid,
$7.80 = t + (t - 3)
$7.80 + 3 = 2t
10.80/2 = t
t = $5.40
therefore, bob spent 7.80 - 5.40 = $2.40
2006-10-30 14:41:55 · answer #4 · answered by g Myzo 2 · 0⤊ 0⤋
Everybody above got it right. I guess the important thing to remember is don't go to the pizza parlor with Bob.
2006-10-30 14:46:56 · answer #5 · answered by Dr. Nightcall 7 · 0⤊ 0⤋
x + x - 3 = 7.8
x + x = 7.8 +3
2x=10.8
x=5.4
Tim spent $5.40
Bob spent $2.40
2006-10-30 14:37:54 · answer #6 · answered by peyotecafe 1 · 0⤊ 0⤋
b+t=7.8
b+3=t
b+(b+3)=7.8
2b=4.8
b=$2.40
2006-10-31 09:59:16 · answer #7 · answered by yupchagee 7 · 0⤊ 0⤋
B + (B+3) = 7.8
2B=4.8
B=2.4
2006-10-30 14:37:20 · answer #8 · answered by fcas80 7 · 0⤊ 0⤋
2.40
2006-10-30 14:35:22 · answer #9 · answered by gia 2 · 0⤊ 0⤋