Daniel needs to purchase 5.6 meters of tape for a project. If each roll of tape contains 80cm andcosts $2.50, what is the total cost of the tape Daniel must buy?
x=cost of tape
meters of tape/cost
5.6/x=.8/2.5
x=17.5
I have the cost is $17.50
Is this correct?
They want us to do a check for this
I am not sure how to do the check? Can you help?
Thanks
5.6 metres = 560 cm
each roll has 80 cm
number of rolls = 560/80 = 7
cost = 7(2.5) = 17.5
you are correct
To check if your answer is correct, you can multiply the number of rolls of tape by the cost per roll and see if it matches the total cost you calculated.
To find the number of rolls Daniel needs, divide the total meters of tape needed by the length of one roll. In this case, Daniel needs 5.6 meters of tape, and each roll contains 80 cm, which is equal to 0.8 meters.
Number of rolls = Total meters of tape / Length of one roll
Number of rolls = 5.6 m / 0.8 m = 7 rolls
Now that we know Daniel needs 7 rolls of tape, we can multiply the number of rolls by the cost per roll to find the total cost.
Total cost = Number of rolls * Cost per roll
Total cost = 7 rolls * $2.50
Total cost = $17.50
So, your initial calculation of the total cost being $17.50 is correct.