JENNA LIVES 4 3/10 MILES FROM SCHOOL. SHE ESTIMATES THAT SHE TRAVELS 4 X 2 X 5, OR 40 MILES EACH WEEK. IS HER ESTIMATE AN OVERESTIMATE OR AN UNDERESTIMATE? EXPLAIN.
Under estimate. Add (3/10)*2*5 to get exact distance
4 3/10 = (4 + 3/10)
(4 + 3/10) * 2 * 5
= 4 * 10 + 3 by distributive property
= 43
Is 40 a over estimate or under estimate of 4 3/10
underestimate
U dumb
To determine if Jenna's estimate of traveling 40 miles each week is an overestimate or an underestimate, we need to compare it to the actual distance she travels.
According to the given information, Jenna lives 4 3/10 miles from school. To find out the total distance traveled in one week, we multiply the distance to school by the number of round trips Jenna makes in a week.
Distance to school = 4 3/10 miles
Number of round trips in a week = 4 (assumed based on the multiplication done)
Distance traveled in one week = Distance to school × Number of round trips
= (4 3/10) × 4
= (43/10) × 4
= 172/10
= 17.2 miles
So, Jenna actually travels 17.2 miles each week, not 40 miles.
Comparing her estimate (40 miles) to the actual distance traveled (17.2 miles), we can see that her estimate is an overestimate. Her estimation of 40 miles is higher than the actual distance of 17.2 miles.