It takes Tammy 45 minutes to ride her bike 5 miles. At this rate, how long will it take her to ride 8 miles?
72
45/5 = 9 minutes per mile
8 * 9 = ?
To find out how long it will take Tammy to ride 8 miles at the same rate as she rides 5 miles, we can use a proportion:
45 minutes ------ 5 miles
X minutes ------ 8 miles
To set up the proportion, we can cross multiply:
5 * X = 45 * 8
Now, let's solve for X:
5X = 360
Divide both sides of the equation by 5:
X = 72
Therefore, it will take Tammy approximately 72 minutes to ride 8 miles at the same rate as she rides 5 miles.
To find out how long it will take Tammy to ride 8 miles at the same rate, we need to set up a proportion.
A proportion is an equation stating that two ratios are equal. In this case, we need to compare the time it takes Tammy to ride a certain distance to the distance itself.
Let's set up the proportion using the information given:
45 minutes is to 5 miles as "x" minutes is to 8 miles.
We can write this equation as:
45/5 = x/8
To solve for x, we need to cross-multiply:
45*8 = 5*x
Simplifying:
360 = 5x
To isolate x, we divide both sides of the equation by 5:
360/5 = x
72 = x
So, it will take Tammy 72 minutes to ride 8 miles at the same rate.