Which equation is true when k = - 15

A) 3k - 11 = - 34

B) - 53 + 4k = 7

C) k/3 + 17 = 12

D) k/5 + 2.5 = 0.5

Question

Brennen Blanchard

Mathematics

6 January, 12:44

Which equation is true when k = - 15

A) 3k - 11 = - 34

B) - 53 + 4k = 7

C) k/3 + 17 = 12

D) k/5 + 2.5 = 0.5

+3

Answers (2)

Know the Answer?

Alan Davies · Answer 1

B) - 53 + 4k = 7

Step-by-step explanation:

Substitute k=15 into each equation

A) 3k - 11 = - 34

3 (15) - 11 = - 34

45 - 11=-34

34 = - 34

not true

B) - 53 + 4k = 7

-53 + 4 (15) = 7

-53 + 60=7

7 = 7

true

C) k/3 + 17 = 12

15/3 + 17 = 12

5+17 = 12

22 = 12

False

D) k/5 + 2.5 = 0.5

15/5+2.5 =.5

3 + 2.5 =.5

5.5 =.5

False

Gideon Mills · Answer 2

Answer: B - 53+4K=7

Which equation is true when k = - 15A) 3k - 11 = - 34B) - 53 + 4k = 7C) k/3 + 17 = 12D) k/5 + 2.5 = 0.5

Which equation is true when k = - 15

A) 3k - 11 = - 34

B) - 53 + 4k = 7

C) k/3 + 17 = 12

D) k/5 + 2.5 = 0.5