Answer:
x = 77.5
Step-by-step explanation:
1. Use cross-multiplication to find x.
2. Divide and round.
x ≈ 77.5
there r algebra calulators you could use
b=8w
Answer:x=20/y
x α 1/y
removing the constant of proportionality sign α and replace it with =k
x = k/y
x=10 y=2
10 = k/2
Cross multiply
10x2=k
20=k
k=20
Substitute k=20 in x=k/y
x=20/y.........required equation
