The sum of three numbers is 78. The second number is 10 more than the first, and the third number is two times the second number

Question

2 years ago

8

.
1. Write an equation that will help you determine the 3 numbers.
2. Solve the equation showing all your steps.
3. Tell what the 3 numbers are.

1 answer:

Anestetic [448] · Answer 1 · 2022-05-21T19:16:22+03:00

4 0

Step-by-step explanation:

a+b+c=78

b=10+a

c=2b

then, we back the first

a+10+a+2b=78

2a+2b=78- 10

2a+2(10+a)=68

2a+2a=48

4a=48

a=12

b=22

c=44