Answer:
Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.
I don’t know how to explain but I can work out the correct ans
To find how much is needed for one person
280/4=70
For 10 person:70*10=700
Answer:
a square plus 2ab plus b square......<em><u>hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>thank</u></em><em><u> </u></em><em><u>you</u></em>
Multiply equation II by 2 and then add up the equations.