2007-09-29 13:35:36 · 11 answers · asked by janvincent21 1 in Science & Mathematics ➔ Mathematics
y = 5a - 3b + c
y = 5 x 12 - (3 x 4) + 8
y = 60 - 12 + 8
y = 48 + 8
y = 56
2007-09-29 13:37:25 · answer #1 · answered by Firefly 5 · 2⤊ 2⤋
All you have to do is substitute the letter's values into the equation.
y = 5a - 3b + c ..... As we know that, and this, a=12, b=4, and c=8
y = 5(12) - 3(4) + (8)
And you will have your answer.
Just say the word if you need any more clarification.
2007-09-29 13:39:47 · answer #2 · answered by Skaggy says: 5 · 0⤊ 1⤋
y = 60 - 12 + 8
y = 56
2007-10-02 07:08:12 · answer #3 · answered by Como 7 · 2⤊ 0⤋
y=5(12) - 3(4) + 8
y=60 - 12 + 8
y= 60 - 4
y= 56
2007-09-29 13:39:24 · answer #4 · answered by Jimmy 2 · 0⤊ 0⤋
56
2007-09-29 13:38:49 · answer #5 · answered by MSTrini 1 · 0⤊ 1⤋
56
2007-09-29 13:37:24 · answer #6 · answered by asourapple100 4 · 0⤊ 2⤋
I won't do your homework for you but I'll give hints.
You substitute. Where the a was in the formula, you put 12 instead. Where the b was, you put 4, etc. Then evaluate the expression. Remember to do all the multiplying before you do adding and subtracting.
2007-09-29 13:40:12 · answer #7 · answered by dogwood_lock 5 · 0⤊ 1⤋
y=5(12)-3(4)+8
y=60-12+8
y=60-4
y=56
2007-09-29 13:38:40 · answer #8 · answered by apetkw 2 · 0⤊ 1⤋
5(12)-3(4)+8
60-12+8
y=40
2007-09-29 13:39:17 · answer #9 · answered by barbaraso a 2 · 0⤊ 1⤋
y=5a-3b+c
y=5(12)-3(4)+8
y=60-12+8
y=48+8
y=52
2007-09-29 13:48:01 · answer #10 · answered by Anonymous · 0⤊ 2⤋