Answer:
Pat t2 = 40 hrs
Step-by-step explanation:
Given:-
- Fred can paint a house in t1 = 10 hours.
- Pat can paint a house in t2 hours.
- pat and Fred can paint a house in T = 8 hours.
Find:-
Which equation, when solved will produce the number of hours need for pat to paint the house alone
Solution:-
- The number of people working on a particular activity " painting a house " is inversely proportional to time taken to complete the activity. tn = T. The relation for individual time taken ti to complete an activity.
Sum ( 1 / ti ) = 1 / T
Where, ti = The individual time for (ith) person
T = The total time taken to complete the time by i = n number of people.
- For n = 2,
1/t1 + 1/t2 = 1/T
1/10 + 1/t2 = 1/8
1 / t2 = 0.025
t2 = 40 hrs
- It takes Pat t2 = 40 hrs to complete painting the house.
Answer:
B -1/2
Step-by-step explanation:
4x+8y = 11
We need to get the equation in the slope intercept form
y = mx+b where m is the slope and b is the y intercept
Subtract 4x from each side
4x-4x+8y = -4x+11
8y = -4x+11
Divide by 8
8y/8 = -4x/8 +11/8
y = -1/2x +11/8
The slope is -1/2 and the y intercept is 11/8
-3(4-2y)=24
distribute the -3
-12+6y=24
add 12 to both sides
6y=36
divide 6 on both sides
y=6
Answer:
Look below.
Step-by-step explanation:
For one, g+g+g+g does not equal g^4. That equals g·g·g·g.
But like you said, 4g = g·g·g·g as well, so shouldn't they be equal?
The answer is more simple than you might expect:
We'll do the second one first. I don't know why, that is just how it is going to be done.
Let's assign a value to 'g'. We'll call it g = 3.
3 to the 4th power is
1) 3·3 = 9
2) 9·3 = 27
3) 27·3 = 81.
So 
= 81.
But, you probably figured out, with g = 3, that 4g = 12, since 3·4 = 12.
Obviously, 81 ≠ 27, meaning these are not the same, and that is the main difference.
Answer:
Sorry just need points
Step-by-step explanation:
