Question

evaluate 42/(5-3)

Answer 1

21

Answer 2

Answers without explanations don't deserve medals.

Answer 3

how u came with the answer because i try doing and its giving me a deferentt answer

Answer 4

and hero am trying but am not that good in math and if u could help me ill appreciate

Answer 5

\[42/(5-3) = 42/2 = 21\]

Answer 6

If you want an explanation, the rule is to apply order of operations.

PEMDAS

P = Parentheses
E = Exponents
M = Multiplication
D = Division
A = Addition
S = Subtraction

Answer 7

Since we have a set of parentheses in the denominator, we have to perform the operation within the parentheses first.

Answer 8

Afterwards, the next step is to apply division.

Answer 9

Doing that:

42/(5-3) = 42/2 = 21

Answer 10

okay i now what i did wrong

Answer 11

thank so much to both

Answer 12

I think @integralsabiti gets what I mean by stating the general rule first

Answer 13

Sometimes stating general rules/approaches are necessary to clear up any possible confusion concerning a math problem.

Answer 14

so how u do this one

Answer 15

yep i am with @Hero .These are the rules of Maths.

Answer 16

Danny made a mistake in the following problem.

Part 1) In which line was the mistake made?

Part 2) Show your work and give the correct answer?
Line 1 21 + 35 ÷ 7 + 6(2)
Line 2 21 + 5 + 6(2)
Line 3 21 + 11(2)
Line 4 21 + 22
Line 5 43

Answer 17

how do i do this one how and could get a answer

Answer 18

i came up with line 3 is the answer

Answer 19

Once again, you have to make sure the order of operations are being followed here. I listed them above.

Answer 20

line 3 is the incorrect step, therefore line 3 is the right choice to pick.

Answer 21

danny should have multiply before adding he was supposd to add 5 and 6 then multiply 6 and 2 first

Answer 22

He wouldn't have added 5 to 6 because 6 would have been multiplied by 2 to get 12

Answer 23

Either way, his step 3 was incorrect and you spotted it.

Answer 24

thank u so much

Answer 25

hero i have one more if you could help
7+52*4
am getting 215

Answer 26

why

Answer 27

7 + (52 x 4)
7 + 208 = 215

What's the problem?