3 years ago

A rectangular room is 2 times as long as it is wide, and its perimeter is 30 meters. Find the dimension of the room.

Mathematics

1 answer:

disa [49]3 years ago

8 0

Answer:

5 by 10

Step-by-step explanation:

We know that the equation of a perimeter of a recangle is 2(l)+2(w), l being length and w being width. We know that l=2w. So the perimeter of this room would be:

2(2w)+2(w)=30

4w+2w=30

6w=30

w=5

l=2w

l=10

the dimensions are 5 by ten

You might be interested in

Need a sentence that shows commutative property of multiplication

natta225 [31]

Commutative property of multiplication is two numbers being multiplied either way,example 1x2 = 2x1.

8 0

4 years ago

If (9^2)^p = 9^8, what is the value of p? A. 2 B. 3 C. 4 D. 6

Vikentia [17]

The answer is 4 so C is correct

5 0

3 years ago

Read 2 more answers

Ashley pounds 98 pounds one year ago .If she weight 112 pounds what is the percent increase in her weight ?

andreyandreev [35.5K]

Answer:

The increase to the nearest percent is 14%

Step-by-step explanation:

$\frac{112 - 98}{98}$ The percent of increase is the weight change over the original amount

.14285714285 To change a decimal to a percent, move the decimal two places to the right.

Rounded to the nearest percent is

14%

3 0

1 year ago

How many parts are needed to prove triangles are congruent?

JulijaS [17]

You need three parts but they can’t all be angles

5 0

3 years ago

Read 2 more answers

MARKING BEST ANSWER BRAINLIEST!!!!!!!!!!!!!!!!!!!!What is the median of this group of numbers?

butalik [34]

Answer:

There are 7 number so what you want to do is separate them into groups and the median will be the number in the middle which is 40 so 40 is the median

Step-by-step explanation:

hope this helps

8 0

2 years ago