At the Grocery Store checkout counter, you watch the amounts of your purchases and coupons entered into the cash register. The amounts are as follows: $3.19, $1.25, $1.39, $3.39, $2.99, $2.79, $3.09, -$1.40(coupon) and -$1.25(coupon). ROUND each amount to estimate the total.
a.$3.00, $1.00, $1.50, $3.50, $3.00,
$3.00, $3.00, -$1.50, -$1.00
b. $3.00, $1.00, $1.00, $3.00, $2.00, $2.00, $3.00, -$1.00, -$1.00
c. $3.19, $1.25, $1.39, $3.39, $2.99, $2.79, $3.09, -$1.40, -$1.25 <--?
d. $3.00, $1.00, $2.00, $3.00, $3.00, $3.00, $3.00, -$1.00, -$1.00 <--?
Use the estimates from question 23. What is a good ESTIMATE for the total bill
a.About $15.80
b. About $15.50
c.Exactly $15.80
d.Exactly $15.50
At a grocery store you estimate your bill to be about $23.50 for 10 items. If the cashier asks for $25.32 is the bill reasonable?
a. No: it should be exactly $23.50
b. No: Being off by $1.82 is too much!
c.Yes: With ten items, that difference is reasonable.
d. yes: Anything within $10.00 difference is pretty close.
what do i do? If I know that Im right on the 1st one I think I'll be able to answer # 2 and 3
If you are rounding to the nearest fifty cents, a. is your answer. Go from there. You see, rounding $3.09 to the nearest 50 cents is $3.00. $2.99 round to $3.00, and so on.
thank you!
To answer the first question, you need to round each amount to estimate the total.
The amounts and their rounded estimates are as follows:
$3.19 rounded to $3.00
$1.25 rounded to $1.00
$1.39 rounded to $1.00
$3.39 rounded to $3.00
$2.99 rounded to $3.00
$2.79 rounded to $3.00
$3.09 rounded to $3.00
-$1.40 (coupon) remains as -$1.40
-$1.25 (coupon) remains as -$1.25
Therefore, the answer is option b. $3.00, $1.00, $1.00, $3.00, $2.00, $2.00, $3.00, -$1.00, -$1.00.
For the second question, using these estimates, a good estimate for the total bill would be the sum of the rounded amounts, which is $3.00 + $1.00 + $1.00 + $3.00 + $2.00 + $2.00 + $3.00 + -$1.00 + -$1.00 = $11.00.
Therefore, the answer is option c. Exactly $15.80 is the estimated total bill.
For the third question, if you estimated your bill to be about $23.50 for 10 items and the cashier asks for $25.32, the difference is $25.32 - $23.50 = $1.82.
Since the estimated bill was about $23.50, being off by $1.82 is not considered too much.
Therefore, the answer is option c. Yes: With ten items, that difference is reasonable.
To answer the first question, you need to round each amount to estimate the total. Here's how you can do it:
1. Round $3.19 to the nearest whole number: $3.00
2. Round $1.25 to the nearest whole number: $1.00
3. Round $1.39 to the nearest whole number: $1.00
4. Round $3.39 to the nearest whole number: $3.00
5. Round $2.99 to the nearest whole number: $3.00
6. Round $2.79 to the nearest whole number: $3.00
7. Round $3.09 to the nearest whole number: $3.00
8. Round -$1.40 (coupon) to the nearest whole number: -$1.00
9. Round -$1.25 (coupon) to the nearest whole number: -$1.00
Based on these rounding estimates, the answer is option b) $3.00, $1.00, $1.00, $3.00, $2.00, $2.00, $3.00, -$1.00, -$1.00.
For question 2, you need to use the estimates from question 1 to find a good estimate for the total bill. Adding up the rounded amounts, you get:
$3.00 + $1.00 + $1.00 + $3.00 + $2.00 + $2.00 + $3.00 + (-$1.00) + (-$1.00) = $13.00
Therefore, the answer is option a) About $15.80.
For question 3, you estimated your bill to be about $23.50 for 10 items. If the cashier asks for $25.32, you need to determine if the bill is reasonable.
To do that, you can calculate the difference between the estimated bill and the amount asked by the cashier:
$25.32 - $23.50 = $1.82
Based on the options provided, the answer is b) No: Being off by $1.82 is too much!
I hope this helps!