Answer:
-1
Step-by-step explanation:
2x-10
-------------- = 3x
4
Multiply each side by 4
2x-10
4*-------------- = 3x*4
4
2x-10 = 12x
Subtract 2x from each side
2x-10 -2x = 12x-2x
-10 = 10x
Divide each side by 10
-10/10 =10x/10
-1 =x
To find an average you add the data values and divide by how many value you have. Since we don't know the one cubs weight we'll use a variable. Set up an equation to find average using x as the weight that is unknown.
Now solve.
(294 + 268 + x )/3 = 288
Multiply both sides by 3 to clear the fraction.
(294 + 268 + x) = 864
Add the left side.
562 + x = 864
Subtract 563 from both sides
x = 302
Answer:
9.25
Step-by-step explanation:
5 x .3 = 1.5
20 - 1.5 = 18.5
18.5/2 = 9.25
Answer:
-1/5
Step-by-step explanation:
down 1, right 5
it seems the picture is flipped though for some reason
Answer:
y = 3x+3
Step-by-step explanation:
Slope = 3 and y-intercept = 3