Answer:
Step-by-step explanation:
3x + 6y = 24
6y = -3x + 24
y = -3/6x + 24/6
y = -1/2x + 4 <=====
Answer:
1. 2c+9=m
Step-by-step explanation:
Answer: x = 27
Step-by-step explanation:
Answer:
x= 4 y= 7 z= -6
Step-by-step explanation:
solve for one and you get them all
First, I got rid of the z by multiplying common factors (multiplied z by 2) and added equations 2 and 3 together after multiplying by 2
4x - 3y - 2z = 7
-10x+10y+2z= 18
-6x+7y= 25
Then multiplied z by -3 (to get rid of the z) with the original equation 3
3x - 2y + 3z = -20
15x-15y-3z= -27
18x-17y= -47
Next find common thing between the 2 equations we got and multiply it by that and combine (we can multiply first equation by 3 to get rid of the x and solve for y)
-18x+21y= 75
18x-17y= -47
y=7
Work backwards, substitute 7 into the above equation, you get x= 4 and then same for z to get z= -6
Answer: 30.1
Step-by-step explanation:
Cups of raisins mixed= 10.33
Cups of pretzels mixed= 12.25
Cups of chocolate mixed= 7.50
When each ingredients is rounded to the nearest tenths, it will be:
Cups of raisins mixed= 10.3
Cups of pretzels mixed= 12.3
Cups of chocolate mixed= 7.5
Total trail mixed by John= 10.3 + 12.3 + 7.5 = 30.1
30.1 cups was mixed together by John.
