Answer:
x=238 plus 0
Step-by-step explanation:
think
Answer:
The Highest common factor of 120,140,180 is ( HCF) = 20
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given numbers 120,140,180
120 = 60 × 2
= 30 × 2× 2
= 15 × 2×2×2
= 5×3× 2×2×2
140 = 70 × 2
= 10 × 7× 2
= 5× 2× 7× 2
180 = 90 × 2
= 30×3×2
= 5 × 6 × 3× 2
= 5 × 2× 3× 2 × 3
The Highest common factor of 120,140,180 is 5 ×2×2 = 20
Answer:
0
Step-by-step explanation:
x2 +4x-21=0. solve for x


Answer:
3x + 4y = 50
x + y = 15
Five 4-point questions
Step-by-step explanation:
Change x + y = 15 to determine what y equal
y = (-x) + 15
Plug it in the original equation using the substitution method
3x + 4(-x + 15) = 50
3x - 4x + 60 = 50
Combine like terms:
-x = -10, two negative signs equals a positive. x = 10
Plug 10 in for x in the equation x + y = 15
10 + y = 15
Subtract 10 from both sides
y = 5
Answer: It depends on how many years a person lives.
Step-by-step explanation: