Answer:
V=6
Step-by-step explanation:
Step 1: Subtract 25 from both sides.
4/3v+25-25=22-25
4/3v=8
Step 2: Multiply both sides by 3/4
(3/4)*(4/3v)=(3/4)*(8)
v=6
The answer is 5 divided by 1/3
Step-by-step explanation:
If a variables varies jointly, we can just divide it by the other variables in relation to it.
For example, since p variables jointly as q and square of r, then
where k is a constant
First, let find k. Substitute p= 200
q= 2, and r=3.
Now, since we know our constant, let find p.
Q is 5, and r is 2.
Answer:
Step-by-step explanation:
theres 2 possible solutions for each equation and each one is right
or for dummies, just reverse the +/- inside the l x +/- y l. and make 2 different equations the first with a + and the second with a -
1. lb-6l = 1
b - 6 = 1
b = 7
-----------
b + 6 = 1
b = -5
--------------
2. lb+2l=7
b + 2 = 7
b = 5
--------------
b - 2 = 7
b = 9
---------------
Answer:
90 miles
Step-by-step explanation:
2 hours = work
speed = x
Distance to work = y
y = 2x
y = 3(x - 15)
3 * x = 3x
3 * -15 = -45
y = 2x
y = 3x - 45
Let's graph this (attached below)
We must find the point at which they intercept.
They intercept at (45, 90)
That means that x = 45 and y = 90
So, she is 90 miles from her office.
Let's check our work:
y = 2(45)
y = 3(45) - 45
y = y
y = 90
2 * 45 = 90
3 * 45 = 135
135 - 45 = 90
This proves that y = y and that y = 90.