Question

(1.)What is the value of 35−3m , when m = 4?

A.1

B.13

C.23

D.128


(2.)What is the value of 1 + x ÷ 5, when x = 80?

Enter your answer in the box.




(3.)Evaluate the expression for the given values.

mx−y when m=5, x=3, and y=8

Enter your answer in the box.




(4.)Evaluate 3a+15+bc−6, when a=7, b=3, and c=15.

Enter your answer in the box.

Answer 1

1.) 35-3m

m= 4

35-3m

= 35-3(4)

= 35-12 (do the multiple/division first before doing the addition/subtraction)

= 23

C. 23

(2.) 1 + x ÷ 5

x = 80

1 + x ÷ 5

= 1+80÷5

= 1+16

= 17

(3.) mx-y

m=5, x=3, and y=8

mx-y

= 5(3)-8

= 15-8

= 7

(4.) 3a+15+bc−6

a=7, b=3, and c=15

3a+15+bc-6

= 3(7)+15+3(15)-6

= 21+15+45-6

= 75

Explanation:

Answer 2

(1.) 35-3m
m= 4

35-3m
= 35-3(4)
= 35-12 (do the multiple/division first before doing the addition/subtraction)
= 23

C. 23

(2.) 1 + x ÷ 5
x = 80

1 + x ÷ 5
= 1+80÷5
= 1+16
= 17

(3.) mx-y
m=5, x=3, and y=8

mx-y
= 5(3)-8
= 15-8
= 7

(4.) 3a+15+bc−6
a=7, b=3, and c=15

3a+15+bc-6
= 3(7)+15+3(15)-6
= 21+15+45-6
= 75