Jenna lives 4 3/10 miles from school, she estimates that she travels 4 x2x5 or 40 miles each week. Is her estimate an over estimate or underestimate?
I think it is under estimate but not sure?
You're right. It's an under estimate.
She lives a little more than 4 miles from school. Therefore her actual travel distance is more than 40 miles in a week.
Thank you
You're welcome.
Please use the same name for your posts.
Jenna made an underestimate because 4 and 3/10 are neither estimated to 4 or 4 and 1/2. if you're multiplying 4 and 1/2 3 times the product will be about 91 and if you multiply 4 3 times it the product will be 64. 91 and 64 are both greater than 40.
Under estimate
I got 60 but not sure,it’s still an under estimate tho
Ms. Sue is correct. 👍👷♂️
4x2x5, or 40
To determine if Jenna's estimate is an overestimate or an underestimate, we need to compare her estimated distance to the actual distance she travels.
First, let's convert the mixed number 4 3/10 into an improper fraction.
4 3/10 is equal to (4 * 10 + 3) / 10, which is equal to 43/10.
Now, let's compare Jenna's estimated distance of 40 miles to the actual distance of 43/10 miles:
To compare the two, we need to find a common denominator. The least common denominator for 10 and 1 is 10, so we can rewrite 40 as 40/1.
Now, let's simplify and compare:
- Jenna's estimated distance: 40/1 miles
- Jenna's actual distance: 43/10 miles
To determine if it's an overestimate or underestimate, we need to compare the two fractions.
To do this, we can either convert 40/1 to a fraction with the denominator 10 or convert 43/10 to a fraction with the denominator 1.
Let's convert 40/1 to a fraction with the denominator 10:
(40/1) x (10/10) = 400/10
Now we can compare the fractions:
400/10 vs 43/10
Since 400/10 is greater than 43/10, Jenna's estimate of 40 miles is an overestimate of the actual distance.