# Posts by Scraffii

Total # Posts: 8

**Mathematics-please help quick!!**

If 16x+8y represents the perimeter of a rectangle, and 5x-2y reprents its width, then what is expression of lenght?

**Mathematics-please help quick!!**

If (x+y)^2=168 and xy =4, then x^2 + y^2=?

**Mathematics-please help quick!!**

Find the reminder when (x^4-9x^2-2x+5) is divided by (x+3)

**Mathematics-please help quick!!**

The first term of the sequence is -168 and every term after the first term is 8 more than the term immediately proceeding it. Find the 88th term.

**Mathematics-please help quick!!**

In a city, the PMV fare is 50 toea. The fare increased by 30%. What is new fare?

**Mathematics-please help quick!!**

The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the area of the rectangle. Answers: A=20+x .B=...

**Mathematics-please help quick!!**

Harry is twice as old as Doyle. Doyle's age is x years. Write in terms of x. A. Harry's age is 5 years ago. B. Doyle's age is 5 years ago. C. Find Doyle's age now if Harry's age was three times Doyle's age five years ago.

**Mathematics-please help quick!!**

The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the area of the rectangle. Answers: A=20+x .B=...