3 years ago

A rectangular room is 7 times as long as it's wide and it's perimeter is 64metres. Find the dimension of the room.

Mathematics

1 answer:

wlad13 [49]3 years ago

4 0

Answer:

Length = 28 meters
Width = 4 meters

Step-by-step explanation:

Assume the width of the rectangle is x. That means that the length of the rectangle is 7x which is 7 times as long as it is wide.

Perimeter of a rectangle:

= Length + length + Width + Width

Therefore:

7x + 7x + x + x = 64

16x = 64

x = 64/16

x = 4 meters

Length is 7 times as long:

= 4 * 7

= 28 meters

You might be interested in

Name the property shown. 5 • 7 = 7 • 5 A. Commutative Property of Multiplication B. Identity Property of Addition C. Identity Pr

Tamiku [17]

A. Commutative Property of Multiplication

6 0

4 years ago

Pls help, due in 4 minutes

Shtirlitz [24]

Answer:

3.8s

Step-by-step explanation:

Solve for h=0, you will get t=3.75

4 0

3 years ago

Here it is again. Please help me

igomit [66]

Answer:

First question: A, Second question: B

Step-by-step explanation:

0.5= 1/2

0.25= 1/4

0.4= 2/5

Now, insert these numbers, as fractions, back into the equation:

$\frac{1}{4}- \frac{1}{2}+ \frac{1}{2}- \frac{1}{4}+ \frac{3}{5}+ \frac{2}{5}$

Following PEMDAS you will get 1 as your answer.

7 0

3 years ago

1. 100 kilometers at 20 km/h?

hodyreva [135]

Answer:

1. 5 hours

2. 4 hours

Reason:

Formula for speed is speed = $\frac{distance}{time}$ , if you want to find time, then take distance / speed, which will equal to 100 / 20 = 5 hours, and the same with 2.

8 0

3 years ago

Read 2 more answers

Write a number with one decimal place ,that is bgger than 6 4/5 but smaller than 7

Ann [662]

Answer:

6 9/10

Step-by-step explanation:

3 0

3 years ago