Question

Evaluate this expression for x=wp,y=4,and z=2.

(8y-2)x÷(z+y)

A)1
B)10
C)50
D)154

Answer 1

So let's plug in the values:


`(8*4-2)10/(2+4)`

Brackets/Parentheses are the highest priority.
Looking in the first set of brackets:
We need to prioritize the multiplication above the division.
So first multiplying,


`(32-2)10/(2+4)`

then subtracting,


`(30)10/(2+4)`

then moving to the other parentheses, applying the addition,


`(30)10/(6)`

Ok we dealt with everything INSIDE of the brackets, so let's drop our brackets remembering that the 30 and 10 are multiplying.


`30*10/6`

Apply multiplication/division from left to right.
So first multiply,


`300/6`

Then finally, divide,


`50`

Hope that makes sense!

Answer 2

x=10, y=4, and z=2

(8y-2)x ÷ (z+y)

Plug in the x values, as well as the y and z values.

(8(4)-2)) (10) ÷ (2+4)

Simplify.

(32-2) (10) ÷ (6)

Simplify.

(30) (10) ÷ 6

Simplify.

300 ÷ 6

Your answer is:

c) 50

~Hope I helped!~