Slimination
multiply first equaiton by 2
2x+6y=10
add to second equiaotn
2x-2x+6y-6y=10-10
0=0
this is true so therfor they are the same equaiton
so solve
x+3y=5
3y=-x+5
y=-1/3x+5/3
subsituter values for x and get valuse for y
if x=2 then y=1
Answer:
4. The number of episodes of pain.
Step-by-step explanation:
A typical experiment, usually has a response and explanatory variable. A response variable is the major problem we seek to resolve in the experiment. The explanatory variable, on the other hand, provides reasons that would explain the response variable.
In the question asked, we are trying to understand if hydroxyurea can reduce the pain suffered by sickle cell sufferers. The experiment is trying to resolve the problem of pain suffered by sickle cell sufferers. Therefore, this is the response variable.
The explanatory variable would be the drug hydroxyurea which would be used to measure and explain the response variable- the number of episodes of pain.
Answer:
I think option c is the answer
Answer:
8 gallons at $7
12 gallons at $2
Step-by-step explanation:
x gallons at $7 with the remaining (20 - x) gallons at $2 to get 20 gallons at $4
x(7) + (20 - x)(2) = 20(4)
Distribute
7x + 40 - 2x = 80
Combine like terms
5x + 40 = 80
Subtract 40 from both sides
5x = 40
Divide both sides by 5
x = 8 gallons at $7
20 - x = 12 gallons at $2
Answer:
Y axis
Step-by-step explanation:
this is correct iehegejdbd