Answer:
200 baseball cards
Step-by-step explanation:
We write the expression:
2000 x 1/10 =
200
Answer:
1/3 hr or 20 min.
Step-by-step explanation:
Call the trains A and B
Remember d = rt
Distance train A travels is 80t
Distance train B travels is 70t
Now, 80t + 70t = 50
150t = 50
t = 50/150 = 1/3 hr or 20 min.
Answer:
7.5 days.
Step-by-step explanation:
Let t represent time taken by Nick in days to paint the house alone.
Part of house painted by Nick in 1 day would be
.
We have been given that Brad paints a house in 5 days, so part of house painted by Brad in 1 day would be
.
We are also told that when Brad's brother Nick joins him, they can paint a house in 3 days. So part of house painted by both Brad and Nick together in 1 day would be
.
Now, we will equate sum of work done by both brothers with
to solve for t as:








Therefore, it will take 7.5 days for the Nick to paint the house alone.
Answer:
None of the answers seem to be correct.
Step-by-step explanation:
The given equation is of the form y = mx + b where m is the slope and b is the y-intercept.
Here, m = -14
Two parallel lines have the same slope. So, the slope of the new line will be -14.
To calculate the y-intercept substitute x=4 and y=4 in the equation.
4 = (-14)(4) + b
Solving for b, we get b = 60.
So, the new equation will be y = -14x + 60