Ask Question
10 October, 03:11

How many solutions exist for the system of equations given below?

3a + 4b = 20

12a = 80 - 16b

A. One Solution

B. Two Solutions

C. Infinitely many solutions

D. No solutions

+2
Answers (2)
  1. 10 October, 03:29
    0
    3a + 4b = 20

    4b = 20 - 3a

    b = 5 - 3/4 a

    12a = 80 - 16 (5 - 3/4 a)

    12a = 80 - 80 + 12a

    12a = 12a

    C. Infinitely many solutions
  2. 10 October, 06:29
    0
    3a+4b = 20

    rewrite the second equation by adding 16b to each side

    12a+16b = 80

    divide each side by 4

    3a+4b = 20

    they are the same equation,

    there are infinitely many solutions
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “How many solutions exist for the system of equations given below? 3a + 4b = 20 12a = 80 - 16b A. One Solution B. Two Solutions C. ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers