Substitution means making one formula equal to a variable in the second formula to plug it in, and elimination means the cancelling out of one variable in order to make it easy to solve.
1. x-4(-x+5)=10
x+4x-20=10
5x=30
x=6, plug in 6 into original equation, y=-1
2. <u>-1(2x</u>-5y=6)
<u>2x</u>+3y=-2 underlined means cancelled, so you add the rest up on each side
5y+3y=-6+-2
8y=-8
y=-1, plug in this value to original equation, x=.5
3. 2(x+5)=2x+10
2x+10=2x+10
Infinite solutions
4. y=<u>4x</u>-3
-<u>4</u>(y=<u>x</u>+6) underlined means cancelled
-3y=-27
y=9, plug into original, x=3
Find the mean, median, mode, and range of the data. 6,6,6,5,5,6,5,6,5. If necessary round to the nearest tenth
egoroff_w [7]
Answer:
ThE ANSWER IS: MEAN:5.6 MEDIAN: 6 MODE :6 RANGE: 1
Step-by-step explanation:
STEP BY STEP EXPLANATION
i tried ;w;
Step-by-step explanation:
m(−11+m)=0
Step 1: Simplify both sides of the equation.
m2−11m=0
Step 2: Factor left side of equation.
m(m−11)=0
Step 3: Set factors equal to 0.
m=0 or m−11=0
m=0 or m=11
Answer:
m=0 or m=11
A system is:
1.25 x + 2.25 y = 16
x + y = 8
---------------------------
y = 8 - x
1.25 x + 2.25 * ( 8 - x ) = 16
1.25 x + 18 - 2.25 x = 16
- x = 16 - 18
- x = - 2
x = 2
y = 8 - 2
y = 6
Answer:
B ) 2 ounces of seed and 6 ounces of dried fruit.
