Note: in the 2nd eqn we are given a formula for x: x = 2y-15. Sub this result into the first eqn; doing so will eliminate x:
-5(2y-15)+4y =3
-10y + 75 + 4y = 3, so -6y = -72. Then y = 12. Solution is (9,12).
Check this by subst.:
Is -5(9)+4(12) = 3?
Is -45 + 48 = 3? YES.
Answer:
3.8 Gallongs
Step-by-step explanation:
15.2/4
Which of the sets of ordered pairs represents a function? (4 points) A = {(−5, 5), (−2, 2), (2, −2), (5, −5)} B = {(4, 2), (3, −
mr Goodwill [35]
Answer:
Both of them are functions...
Step-by-step explanation:
Both of them are functions because neither A nor B has a repeated X value in their sets.
Answer:
The real answer is
Step-by-step explanation:
2,i just took the test
