this month a vegetarian restaurant used 109,868 ounces of spinach. that is 21% more than they used last month. how much did the restaurant use last month?

Respuesta :

Answer:

90,800

Step-by-step explanation:

This month's usage of the spinach is 21% more, which means you divide the percentage increased and add 100% (or 1 if you do it the decimal way).

109868/1.21 = 90800

Double check-

Method 1

90800 mupltiply how much has increased (21%)

90800*0.21 = 19068

19068 plus the use of last month (90800)

19068+90800 = 109868

Method 2

90800 mupltiply how much has increased & last months usage (121%)

90800*1.21 = 109868

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