The independent variable is number of minutes and the dependent variable is number of miles. Constant of proportionality is 1.2 because 9.6/8=1.2 and 18/15=1.2

Step-by-step explanation:

5 0

3 years ago

Draw a line representing the “rise” and a line representing the “run” of the line. State the slope of the line in simplest form.

Otrada [13]

Answer:

(-2,6) (-7,4)

Step-by-step explanation:

Thats wat u got on ur gragh so just go wit that XD

3 0

2 years ago

Flying against the jetstream, a jet travels 7380 miles in 9 hours. Flying with the jetstream, the same jet travels 9920 miles in

Damm [24]

Answer:

The rate of the jet in still air = 1030 miles per hour

And 210 miles per hour is the rate of the stream.

Step-by-step explanation:

Let the speed of the jet in still air be $x$ miles per hour.

And,the speed of the jetstream be $y$ miles per hour.

Key:So when it is moving against the stream speed will be $(x-y)$ and when it is moving with the stream, speed will be $(x+y)$

And we know that.

Distance=Speed multiplied with time.

Arranging the equation.

$9920=8 \times (x+y)$ ...equation 1

$7380=9 \times (x-y)$ ...equation 2

Working with the equation by using elimination method.

Dividing equation 1 with 8 and equation 2 with 9.We will have

1240= $(x+y)$ ...eqn 3

820= $(x-y)$ ...eqn 4

Now adding both the equation will decimate y.

1240+820=2 $x$

2060=2 $x$

Dividing with 2 both sides.

1030= $x$

By plugging the value of $x$ we can find y in equation 3.

1240=1030 + $y$

Subtracting 1030 from both sides.

1240-1030= $y$

$y$ =210 miles per hour

So the rate of the jet in still air = 1030 miles per hour

And 210 miles per hour is the rate of the jet stream.

6 0

2 years ago