Answer:
x = 1
Step-by-step explanation:






Answer:
{ x | -7 ≤ x ≤ 4 }
Step-by-step explanation:
What do u want to know?
A x 50% = $ 120
B x 120% = $ 90
Answer:
x=13,y=0
Step-by-step explanation:
We are given a system of equations

For equation 1,square all terms to reduce it
√x²+√y²=169
x+y=13
Make x the subject as required by the question to use substitution method
x=13-y
Plug x=13-y into eqn 2
3(13-y)+2y=39
39-3y+2y=39
39-y=39
y=39-39=0
Plug y=0 into equation 1
x+0=13
x=0
Answer:
370
Step-by-step explanation:
50 + x = 420
x = 420 - 50
x = 370