Question

Mason and Nora decided to swim across the river. Mason began swimming 33 seconds earlier than Nora.
Mason swam at a speed of 3 feet per second.
Nora swam at a speed of 4 feet per second.
For how many seconds had Mason been swimming at the moment when the two swimmers had swam exactly the same distance?

Answer 1

i forget what the formula is to this

Answer 2

i have no clue.

Answer 3

yeah i took something like this a year ago but it totally slipped my mind let me look. what is the lesson you are on?

Answer 4

so that i know like what to search

Answer 5

@Starbucks

Answer 6

its algebra , but like im in the end so i dont really know..

Answer 7

ok well what is it asking for?

Answer 8

For how many seconds had Mason been swimming at the moment when the two swimmers had swam exactly the same distance?

Answer 9

i know that nora caught up to mason at 120 seconds, but that was wrong.

Answer 10

ok one sec

Answer 11

@SolomonZelman

Answer 12

that guy i bet can help

Answer 13

i hoope.

Answer 14

@deliciotron

Answer 15

@chosenmatt

Answer 16

speed = distance / time

but once we have the equation, we can use any of its variations,

speed = distance / time

distance = speed * time

time = distance / speed

Answer 17

that's it. that's the equation

Answer 18

For example, suppose we drive for 2 hours at 30 miles per hour, for a
total of 60 miles. If we know the time and the speed, we can find the
distance:

2 hours * 30 miles/hour = 60 miles

If we know the time and the distance, we can find the speed:

60 miles / 2 hours = 30 miles/hour

If we know the speed and the distance, we can find the time:

60 miles / (30 miles/hour) = 2 hours

It's a little like having a family of multiplication facts, e.g.,

12 = 3 * 4

3 = 12 / 4

4 = 12 / 3

Answer 19

i dont get how to use that for my question though .

Answer 20

Just forgot. lemme think for a sec

Answer 21

Does it tell you howw long it took them to be at the same place?

Answer 22

nope.

Answer 23

i got that myself though, it took 120 seconds.

Answer 24

Ok, so 120 seconds times 4 feet per second and 120 seconds times 3 feet per second. That would be the next step.

Answer 25

Actually it would be 4 feet per second * 120 second and the same for 3 feeet per second

Answer 26

feet*

Answer 27

@kobeni-chan

Answer 28

Then you see how long it takes for nora to pass mason

Answer 29

Did that help?

Answer 30

no .