One week, Mrs. Peterson went to her health club on Monday, Wednesday, and Friday. Each day she went to the club, she jogged on the treadmill for 3/5 hour, lifted weights for 1/4 hour, and then cooled down by stretching for 1/4 hour. On Saturday, she rode her bike for 3/4 hour. How many hours did she spend riding and bike and exercising at the health club that week?
Answer choices:
3 1/20 hr, 29 3/5 hr, 4 1/20 hr, and 5 11/20 hr. Please help!
Let's use decimals
3(0.6 + 0.25) + 0.75 = ?
So then the equals 3.3 ???? that's not an answer choice
Oops -- We forgot to include 1/4 hour for stretching.
Add 0.75 to 3.3 =
Oh yeah! I was like what? But thanks! Also can you help with this one? It is a little confusing..
Mrs. Hansen raises German Shepherd puppies. She kept track of the weight of one of the puppies for 4 months. The puppy gained 7 1/4 pounds the first month, 10 1/4 pounds the second month, 8 1/4 pounds the third month, and 10 1/2 pounds the fourth month. What was the puppy's average weight gain per month?
(7.25 + 10.25 + 8.25 + 10.5)/4 = ?
51450
To find the total number of hours Mrs. Peterson spent riding her bike and exercising at the health club that week, we need to add up the hours she spent on each activity.
First, let's calculate the total hours spent at the health club on Monday, Wednesday, and Friday:
Jogging on the treadmill: 3/5 hour x 3 days = 9/5 hour
Lifting weights: 1/4 hour x 3 days = 3/4 hour
Cooling down/stretching: 1/4 hour x 3 days = 3/4 hour
Total hours spent at the health club from Monday to Friday = (9/5 + 3/4 + 3/4) hour = (36/20 + 15/20 + 15/20) hour = 66/20 hour
Next, let's calculate the hours spent riding her bike on Saturday:
Riding her bike: 3/4 hour
Therefore, the total hours spent riding her bike and exercising at the health club that week is:
Total hours = 66/20 + 3/4
To add these fractions, we need to have a common denominator. In this case, the common denominator is 20.
Total hours = (66/20) + (3/4)
= (66/20) + (15/20)
= (66 + 15)/20
= 81/20 hour
Now, we need to express the answer as a mixed number (whole number + fraction):
81 divided by 20 equals 4 with a remainder of 1.
So, the answer is 4 1/20 hours.
Therefore, Mrs. Peterson spent 4 1/20 hours riding her bike and exercising at the health club that week.