Answer:
I know it is 13
Step-by-step explanation:
hope you get it right
The best way to figure this out is to rewrite the equation in to standard slope form:
y = mx + b
this would look like...
5y = -7x + 35
divide 5 from each side of the equation...
-7
y = —— x + 7
5
find the values you can graph...
b = y intercept = the point in which the line "hits" the y axis on the graph. so count 7 points up and plot a point on the y axis at 7.
once you plot that, this is the starting point of your slope...
-7 (rise) count 7 down
m = slope = —— (over)
5 (run) count 5 to the right
message me if you need anything to clarify or any other questions!
The main part of solving this problem is carefully looking at each and every word of the problem very minutely. The details required for solving the problem is already given in the question.
Let us assume the unknown number to be = x
Then the equation for getting to the unknown number can be written as
8x - 20 = x + 15
8x - x = 15 + 20
7x = 35
x = 35/7
= 5
So from the above deduction we can easily conclude that the unknown number in the question is 5.
Answer:
Could you please put a link to the question???
Step-by-step explanation:
We can only solve the question if you give us more info about the question.
Answer:
AB = 8
Step-by-step explanation:
A is between B and C. If BC= 8x + 5, AB= 2x + 4, and AC= 3x + 7, then find AB
Step 1
Find x
BC = AB + AC
8x + 5 = 2x + 4 + 3x + 7
Collect like terms
8x - 2x - 3x = +4 + 7 - 5
3x = 6
x = 2
Step 2
Find AB
= AB= 2x + 4
AB = 2(2) + 4
AB = 4 + 4
AB = 8