Billy is paid 18¢ each time he cleans his room. He needs 45¢ for a snack. About how many times does he need to clean his room to be able to buy the snack?
A. about 9 times
B. about 7 times
C. about 3 times
18 is close to 20
20 * 2 is 40 so need more than 2
so try 3 first 18*3 = 54
Is it C?
Sure looks like we need 3 all right.
To find out how many times Billy needs to clean his room to have enough money for the snack, we can divide the cost of the snack by the amount he earns each time he cleans his room.
The cost of the snack is 45¢, and Billy earns 18¢ each time he cleans his room.
To calculate the number of times Billy needs to clean his room, we divide 45¢ by 18¢:
45¢ ÷ 18¢ = 2.5
Since we can't have a fraction of a cleaning, let's round to the nearest whole number. In this case, 2.5 is closer to 3 than to 2.
Therefore, Billy needs to clean his room approximately 3 times to be able to buy the snack.
The correct answer is C. about 3 times.