X = 4y
3x - y = 70
substitute the x in the second equation with the other half of the first equation.
3(4y) - y = 70
12y - y = 70
11y = 70
y = 6.36 repeating, or 6 4/11
now use this to solve first equation
x = 4 (6 4/11)
x = 25.45 repeating
done
Answer:
Step-by-step explanation:
Unusual question. 4/5 = 0.8, which is NOT a repeating decimal; it's a rational fraction.
The answer is b, because division checks multiplication.
