Sheet # 13/Writing Equations
Name: _____________________ Date_____________
1) The length of a rectangle is four feet more than the width.
Let w be the number of feet in the width. The (w + 4) is the number of feet in the length. Write equations showing that:
a) When the width is doubled it is the same as the length increased by three.
b) Assume the length is doubled. To have the same measure, the product of 3 and the width must be increased by 1.
c) Twice the width added to twice the length is equal to 36 ( This is the perimeter of the rectangle)
2) In ten more years, Mrs. Smith will be forty years old. How old is she now?
3) Twenty per cent of a number is 10. What is the number? (Hint: 20% is 0.20 or 1/5)
4) A carpenter cuts a 50-inch board into two pieces. One piece is 10 inches longer than the other piece. Find the length of the shorter piece.
5) In a class election, Marge received 5 votes more than Bruce. How many votes did Bruce receive if there were 35 voters in the class?