Mary bought a smartphone and has $11.43 left. How much did Mary have before she bought the smartphone?ElectronicsPriceMP3 Player$39Computer$299Tablet$199Smartphone$78NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question.(1 point)Responses$66.57$66.57$89.43$89.43$27.57$27.57$50.43
1 answer
To find out how much Mary had before she bought the smartphone, we need to add the cost of the smartphone to the amount she has left after the purchase.
The cost of the smartphone is $78 and the amount she has left is $11.43.
So, we calculate it as follows:
Amount before purchase = Amount left + Cost of smartphone
Amount before purchase = $11.43 + $78
Amount before purchase = $89.43
Thus, Mary had $89.43 before she bought the smartphone.
The correct response is $89.43.
