while riding her bike, jennifer burns 450 calories every 1/2 hour. Based on this rate, how many calories will jennifer burn if she rides her bike for 1 3/4 of an hour?
First, multiply 450 by 2, which is 900 calories for one hour. Now, for the 3/4, set up a proportion.
.50 / 450 = .75 / ?
450 X .75 = 337.5
337.5 / .50 = 675.
So, Jennifer will burn 675 calories every 3/4 of an hour.
900 + 675 = 1575, the number of calories Jennifer will burn if she rides her bike for 1 3/4 hours.
There is a question similar to this on my test.
For mine it's 154 -Ibs and that he burns 420 calories on a bike. And, that you have to write a function and explain stuff.
SO HERES MY ANSWER:
It says he burns 420 calories every hour
so in 1 hour, 420
in 2 hours , 840 ...
SO the answer is= 420t
The rest is just babble intended to confuse the enemy (students)
I think the teachers hate us lol
ANYWAYS, your welcome folks
Hope I helped
To find out how many calories Jennifer will burn if she rides her bike for 1 3/4 of an hour, we can follow these steps:
Step 1: Calculate the total number of half-hour intervals in 1 3/4 of an hour.
To convert 1 3/4 of an hour to minutes, we multiply the whole number part (1) by 60 and add it to the numerator of the fractional part (3), as follows:
1 hour + 3/4 hour = 60 minutes + (3/4 * 60) minutes
= 60 minutes + 45 minutes
= 105 minutes
Now, we divide the total number of minutes (105) by 30 (each half-hour), as follows:
105 minutes / 30 minutes/half-hour = 3.5 half-hour intervals
So, there are 3.5 half-hour intervals in 1 3/4 of an hour.
Step 2: Calculate the calories burned in each half-hour interval.
Jennifer burns 450 calories every half-hour, so for each half-hour interval, she burns 450 calories.
Step 3: Calculate the total calories burned.
To find the total calories burned, we multiply the number of half-hour intervals (3.5) by the calories burned in each half-hour interval (450), as follows:
3.5 intervals * 450 calories/interval = 1575 calories
Therefore, Jennifer will burn 1575 calories if she rides her bike for 1 3/4 of an hour.