Question

maria is drawing a mural of the night sky on black poster board with white chalk if she uses up a stick of chalk ate the rate of one stick every ten minutes and she works on her mural from 8:20 am until 10:00 am how many sticks of chalk will she use

Answer 1

Maria will use 4 sticks of chalk.

Answer 2

Answer: Maria will use 10 sticks of chalk.

Step-by-step explanation: Maria works on her mural from 8:20 am to 10:00 am. This is a total of 1 hour and 40 minutes.

She uses up one stick of chalk every ten minutes.

So, we need to find out how many ten-minute periods there are in 1 hour and 40 minutes.

First, convert 1 hour and 40 minutes to minutes:

1 hour = 60 minutes

So, 1 hour and 40 minutes = 60 minutes + 40 minutes = 100 minutes

Then, divide this total number of minutes by the rate at which Maria uses chalk:

100 minutes ÷ 10 minutes/stick = 10 sticks