# Math (bobpursely)

Given that a*b = ab-b/a
Evalute
1)-3+-4*8 is it 32-8/4=6?
2)2*(4*8) is the ans 64?

it means ab minus B divided by A

1. Well, then the * is an operator, so
1) -3+-4*8=-3+ -32-8/-4=-3-32+2=-33 as I see it.

I don't get either of your answers, but frankly, I am not certain of the function.

ab minus b divided by a could be
(ab-b)/a or ab - (b/a)

posted by bobpursley
2. I get the same answers as Mr. Pursley:

If a*b = ab - b/a,
1)-3+-4*8 = -3 + (-4)*8 = 33
2)2*(4*8) = 2*(30) = 45

if a*b = (ab-b)/a,
1)-3+-4*8 = -3 + (-4)*8 = -3 + 10 = 7
2)2*(4*8) = 2*(6) = 3

posted by MathMate

## Similar Questions

Can you check these problems, please? Translate each phrase into algebraic expression. 1. 5 more than D Ans: 5 + D 2. Twice a number W Ans: 2*W 3. Product of 60 and W Ans: 60*W 4. A number, N, decreased by 18 Ans: N - 18 5. 14
2. ### maths

Given that a*b = ab-b/a Evalute 1)-3+-4*8 is it 32-8/4=6? 2)2*(4*8) is the ans 64?
3. ### Algebra

(x+3)/(x+8)-(x-8)/(x-3) I worked this out and got -55 Ans. But was marked wrong because the Ans. is 55 why and how does this end with no minus(-)sign please show working
4. ### pre-cal

6. ) let f(x)=x^2,evalute f(h-2)-f(-2)/h H->0 7.) evalute lim-2x^2+x/x x->0
5. ### 7th grade math (probability)

Can you check these, please? Ten cards numbered 1 through 10 are mixed together and then one card is drawn. Find the probability of each event. Write each answer as a fraction, percent, and decimal. 14. P(less than 5) = 4/10 = 2/5
6. ### algebra ll

solve 3 plus(2y minus 1)> equals 1 my ans. is (2y minus 1) equals negative 2
7. ### *** Discrete Math ***

I have solved parts of the question, but I want to know if they are correct. Other parts I'm not sure how to do, like part b and c. g(x)=2x+1 Define g^3= g^2 o g,...,g^n =g^(n-1) o g (where "o" means composition) a) Give rules for
8. ### math... Ms, Sue can you help?

Apparently, I got this question wrong on a test and I'd like to know what error I made... can you help? Here's what I did: 2b^2+b=6 b^2+1/2b=3 b^2+1/2b+(1/2)^2=3+(1/2)^2 (b+1/2)^2=3+1/4 b+1/2=+/- <13/4> b=-1/2+/-<13>/2