3 years ago

The length of a rectangle is four times its width. If the perimeter of the rectangle is 90 cm, find its area

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

7 0

Answer:

324

Step-by-step explanation:

L = 4W

P = 2L + 2W = 90

---

2L + 2W = 90

2(4W) + 2W = 90

8W + 2W = 90

10W = 90

---

W = 9

L = 36

---

A = 324

---

You might be interested in

This needs to be simplified and clearly i don’t know the answer -23b^4+(-7b^4)

vladimir2022 [97]

$\text{Hello there!}\\ \\ \text{In this question, you need to simplify by adding like terms}\\ \\\text{Both terms are}\,\,b^4,\,\,\text{in which you can combine them}\\\\-23b^4+(-7b^4)\\\\\text{Add them}\\\\-30b^4\\\\\large\boxed{-30b^4}$

5 0

2 years ago

Read 2 more answers

Solve the quadratic equation 3x^2+x-5=0

irinina [24]

-1 ± √61 / 6. Negative 1, plus or minus square root of 61 divide by 6

5 0

3 years ago

The answer to the question

Andru [333]

That would be about eight ounces of yellow paint

3 0

3 years ago

Read 2 more answers

Divde the square roots of 121 by the product of the Square roots of 25 and 4

Pavel [41]

Answer:

1.1

Step-by-step explanation:

$\frac{ \sqrt{121} }{ \sqrt{25} \times \sqrt{4} } = \frac{11}{5 \times 2} = \frac{11}{10} = 1.1$

7 0

2 years ago

The total surface area of a right circular cone is 256 square feet. If I slant height of the cone is three times the length of a

Sergeeva-Olga [200]

what are the answers

3 0

2 years ago

Read 3 more answers