Answer:
-36,-192
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
plug in 2 for the a variables and you get 4 as the answer.
Answer:90% because 46% out of 50 is 90
Step-by-step explanation:
have a great day <3
(if i get this wrong im so sorry :(
5x + 60y = 35
x +y = 1.5 : rewrite as x = 1.5-y and substitute this formula for x in the first one:
5(1.5-y) + 60y = 35
distribute:
7.5 - 5y + 60y = 35
combine like terms:
7.5 + 55y = 35
subtract 7.5 from both sides:
55y = 27.5
divide both sides by 55 to solve for y
y = 27.5 / 55 = 0.5
now substiute 0.5 for y in the 2nd equation:
x + 0.5 = 1.5
x = 1.5 - 0.5 = 1
he walked for 1 hour
