Question

Please help




Evaluate 5(a – 2b) when a = –3 and b = 5.

A.
65

B.
35

C.
–65

D.
–25

Answer 1

All you do is plug in the values and solve! @noahbred

Answer 2

5(a-2b)
is
5((-3)-2(5))

Answer 3

is it -25?

Answer 4

I got 0 uhhhh

Answer 5

First do 2 times 5.

Answer 6

2 times 5 = ?

Answer 7

10

Answer 8

Yes.

Answer 9

Now do -3 - 10.

Answer 10

7

Answer 11

no

Answer 12

um 13

Answer 13

no

Answer 14

-3-10 is -13.

Answer 15

You take negative 3 and subtract 10 from it. You get -13.

Answer 16

so 10-13?

Answer 17

How did you get that?

Answer 18

because both equations i just put together

Answer 19

Let me show you a step by step process.

Answer 20

\[5(a-2b)\]

Answer 21

Now you plug in -3 for a and 5 for b.

Answer 22

\[5(-3~-(2\times5))\]

Answer 23

it 35

Answer 24

\[5(-3~-(10))\]

Answer 25

\[5(-3-10)\]

Answer 26

\[5(-13)=?\]

Answer 27

65 its 65

Answer 28

yup

Answer 29

No.

Answer 30

It's NEGATIVE 65.

Answer 31

THANKSS sorry i am really dumb

Answer 32

The negative symbol in front of 13 makes the product of -13 and a positive number become negative.

Answer 33

No, you're not dumb at all. You just need time to understand math. It's actually quite fun. :)

Answer 34

Awesome explanation @confluxepic

Answer 35

Thank you.

Answer 36

thankss

Answer 37

Now let's do a practice problem. @noahbred
What is 10+a-5b if a is 2 and b is 3?

Answer 38

The first step is the simplest. All you do is plug in the values.

Answer 39

tanks annd yah i wil practice more