You know when for example they have the same variable or if there is no variable then you could combine them.For example, if it is 3x and 5x you could combine it to get 8x but if it is like 3x and 2y, you can’t combine it since it doesn’t have the same variable
Answer:
21x+35y
Step-by-step explanation:
7*3x+7*5
21x+35y
Answer:
y=3x-2
Step-by-step explanation:
all you need to do is divide the coordinates of the x intercept and y intercept by two
Answer:
9.08 hours
Step-by-step explanation:
in order to fill 1 pool
fill rate by pipe = 1 pool / 15 hours = 1/15 pool per hour
fill rate by hose = 1 pool / 23 hours = 1/23 pool per hour
combined rate = fill rate by pipe + fill rate by pool
= 1/15 + 1/23 = 38/345 pool per hour
since:
38/345 pool -----------> will take 1 hour
1 pool --------------------> will take 1 hour x (345/38) = 9.08 hours
Answer:
x^4 - 3x^3 + 3x^2 - 2x + 4
Step-by-step explanation:
(x^4 - 3x^3 + 3x^2 - 3x + 6) + (x - 2)
Reorder
x^4 - 3x^3 + 3x^2 - 3x+x + 6-2
Simplify
x^4 - 3x^3 + 3x^2 - 2x + 4
