CPhill

Just find how far he travels in (3/4) hr

So .....  rate per hour x time = distance

(7 + 1/5) x (3/4) =

(36/5)(3/4) =  ????

Can you finish this???.....your answer will be in miles......

y = x - 1

To get the y intercept, let x = 0

y = 0 - 1  = -1   so the y intercept is ( 0, -1 )

To find the x intercept, let y = 0

0 = x - 1     add 1 to both sides

1 = x      so the x intercept is (1, 0 )

a. If the train travels at 60km/hr, it travels at 1 km/min.  So...it takes 45 min to go from A to B.

b. We can find the rate by dividing the Distance by the Time   ...   so ....

45km / 40 min  = 1.125 km/min = 1.1 km/min  (rounded)

Thanks for that detailed answer, saseflower........!!!!

(-6)+4n<70    add 6 to both sides

4n < 76         divide both sides by 4

n < 19

1000m / 1 km * 100cm / 1 m  = 100,000 cm / 1 km

y=-(2/5)x-4       multiply everything by 5

5y = - 2x - 20    add 2x to both sides

2x + 5y = -20

And that's in S.F.

Yep.....that's it.....(as long as the number isn't 0 )

Let Luka's score be x

Then Tony's score  =  x + 12

And Jack's score = x / 3

And  Jack's score was 1/9th of Tony's....so...

Nine times Jack's score = Tony's  .....so....

9(x/3) =  x + 12     simplify

3x = x + 12     subtract x from both sides

2x = 12     divide both sides by 2

x = 6

And Tony's score is x + 12 = 6 + 12  = 18