Answer:
(3, 1 )
Step-by-step explanation:
Given the 2 equations
x + 2y = 5 → (1)
3x + 5y = 14 → (2)
Rearrange (1) expressing x in terms of y by subtracting 2y from both sides
x = 5 - 2y → (3)
Substitute x = 5 - 2y in (2)
3(5 - 2y) + 5y = 14 ← distribute and simplify left side
15 - 6y + 5y = 14
15 - y = 14 ( subtract 15 from both sides )
- y = - 1 ( multiply both sides by - 1 )
y = 1
Substitute y = 1 into (3) and evaluate for x
x = 5 - (2 × 1) = 5 - 2 = 3
Solution is (3, 1 )
Answer:
See explanation
Step-by-step explanation:
24.5 16.05 24 18
17 26.5 118 44
42.25 42.6 189.5 125
I think its C how many tiles will he use to cover the whole section
Answer:
D.
Step-by-step explanation:
0.72 = 72%
So that being the case, his car's value decreased by 72%
30 + .15x = 20 + .20x
10 = .05x
200= x
200 miles