4/5(v - 7) = 2...distribute the 4/5 thru the parenthesis
4/5v - 28/5 = 2 ...multiply everything by 5
4v - 28 = 10...add 28 to both sides
4v = 10 + 28
4v = 38
v = 38/4 reduces to 19/2 or 9 1/2 <==
The answer would have to be 1.
Im pretty sure the answer would be A, B & D
Answer:
Step-by-step explanation:
For the first problem, we can plug in the slope of
for
:

To solve for
, we plug in the given point
:



This gives us the equation:

For the second problem, we can plug in the slope of
for
:

To solve for
, we plug in the given point
:


This gives us the equation:

Answer:
1:4
Step-by-step explanation:
Let X be the quantity of 30% acid and Y be the quantity of 5% acid.
0.3X + 0.05Y = 0.1(X+Y)
0.3X + 0.05Y = 0.1X + 0.1Y
0.3X - 0.1X = 0.1Y - 0.05Y
0.2X = 0.05Y
X/Y = 0.05/0.2
X/Y = 1/4
X:Y = 1:4