Velocity of that jet flying against the jetstream is:
And the velocity of that jet flying with the jetstream is:
Let the velocity of that jet in still air be x miles per hour and the velocity of jetstream be y miles per hour, so:
and
Adding the two equations we have:
the velocity of that jet in still air is 960 miles per hour.
And the rate of the jetstream "y" is (replacing x in the first equation):
170 miles per hour
So we have $250 spent, so we get 25% off of that.
To find 25% of 250 we have to do 250 × 0.25, which is 62.5.
Amy will save $62.50.
Answer:
2268 in3
Step-by-step explanation:
<span>A relation between two sets is a collection of ordered pairs containing one object from each set. </span>
First you will have to calculate how much the fair admission costs were.
Star spent $43.75 on rides and the admission together.
One ride ticket costs $1.25, so 25 ride tickets cost:
1.25 x 25 = $31,25
The admission costs will then be:
43.75 - 31.25 = $12.50
A normal linear equation goes like this:
y = c · x
x is supposed to be the number of ride tickets. you add the costs of those tickets in front to show how much money it will be.
y = c · 1.25x
Your constant in this case is the admission, it is the same for everyone, $12.50, so your equation will be:
y = 12.5 · 1.25x