Maths question, urgent :(

[Excellent2]

Alright I'm absolutely crusty at maths so here goes:

Reference:

If B = 16. C = 2, D=4, E=8, calculate the value of A (D for question c) for thr following expressions. Note * means multiply and / means divide.

A) A = B + C * D / E - C
B) A = (B + D * 2) / (E * D+C)
C) D = D + E

Whats the answers?

Thanks

[Kieeran]

i think 1 = 7 not sure tho LOL

[myke]

1. 4
2. 24 / 34 = idk calculator pls
3. 12

[Kieeran]

1. 4
2. 24 / 34 = idk calculator pls
3. 12

im pretty sure 1 is 7

[Cyndia]

The important thing for this is just to remember the order of operations. PEMDAS is the abbrv. and I always remembered it with the expression 'Please Excuse My Dear Aunt Sally'. So yeah, it means you should calculate problems in this order: Parenthesis, Exponents, Multiplication & Division, and Addition & Subtraction.

A) A = 16 + 2*4/8-2
A = 16 + 8/8 -2
A = 16 + 1 - 2
A = 15

B) A = (16 + 4 * 2) / (8 * 4 + 2)
A = (16 + 8)/(32 + 2)
A = 24 / 34
A = 0.7

C) D = D + 8

Someone else should verify (i might have messed up one of the calculations). I'm also not sure on C? Did you mistype the problem?

[myke]

A) A = B + C * D / E - C
If B = 16. C = 2, D=4, E=8,

A = 16 + 2 * 4 / 8 - 2
= 16 +8 / 6
= 24 / 6
= 4

[Excellent2]

im pretty sure 1 is 7

Why though? I'm dumb

[Excellent2]

So many different answers but which is right ;/ lmao.

Edited by Cyndia (Forum Moderator): Please do not double post within the edit time, simply edit your previous post.

[kk.]

everyone listen to me, i am correct

1. 15
2. 12/17
3. youve wrote it wrong?! because that would mean E = 0?

[myke]

kk, 4 + 8 doesn't = 0 ? :S