help me please,Which describes a situation when an estimation is appropriate?
A.
Margo wants to buy a sweater for $15.98 and a pair of socks for $1.98. She has $20. She wants to know if she has enough money to buy both.
B.
Margo buys a sweater for $15.98 and a pair of socks for $1.98. She gives the cashier $20. The cashier wants to know how much change to give Margo.
ithink its a
I agree.
To determine which situation describes a situation where an estimation is appropriate, let's first understand what estimation is.
Estimation is an educated guess or approximation based on available information. It is used when you need a rough or quick answer and don't require an exact calculation or value. Estimations are particularly useful when the numbers involved are large or complex.
Looking at the two situations you provided:
A. Margo wants to buy a sweater for $15.98 and a pair of socks for $1.98. She has $20 and wants to know if she has enough money to buy both.
In this situation, estimation is not necessary because Margo can simply calculate the exact total cost of the sweater and socks to determine if she has enough money. Adding $15.98 and $1.98 will give the exact total, which can be compared to the available $20.
B. Margo buys a sweater for $15.98 and a pair of socks for $1.98. She gives the cashier $20, and the cashier wants to know how much change to give Margo.
In this situation, estimation is appropriate because the cashier does not need to calculate the exact change to give Margo. Instead, they can estimate the change by approximating the total cost of the items. By subtracting the estimated total cost from the amount given, the cashier can quickly determine the approximate change to give Margo.
Based on this analysis, situation B describes a situation when estimation is appropriate.