All categories

3 years ago

The length of a rectangle is 9 cm more then half the width. Find the length of the perimeter is 60cm

Mathematics

1 answer:

stira [4]3 years ago

7 0

length = 1/2 w+9

perimeter= 60 =2(l+w)

substitute in for length

60 = 2(1/2 w +9 +w)

60 = 2 (3/2 w +9)

distribute

60 = 3w + 18

subtract 18 from each side

42 = 3w

divide by 3 on each side

14 = w

length = 1/2 w + 9

length = 1/2 (14) +9

7 + 9

16cm

You might be interested in

Could you help me plz

Nadya [2.5K]

Answer:

Step-by-step explanation:

(For a circle)

Circumference formula: π*2r

Area formula: π*r^2

π*2(3) =>6π=>18.84 m

π*(3)^2=>9π=>28.27 m^2

π*2(3.1)=>6.2π=>19.47 m

π*(3.1)^2=>9.61π=>30.19 m^2

6 0

3 years ago

Please help ill mark brainliest

anyanavicka [17]

The value of the missing length is 20

Let the missing length be x

From Parallel lines and transversal theorem, we have that

If three or more parallel lines intersect two transversals, then they cut off the transversals proportionally.

Then, we can write that

$\frac{x}{15} =\frac{16}{12}$

∴ $x = \frac{15\times 16}{12}$

x = 20

Hence, the value of the missing length is 20

Learn more here: brainly.com/question/24258397

6 0

3 years ago

-1.6 + (-2.4) add. write your answer in simplest form

alukav5142 [94]

Answer:

-4

Step-by-step explanation:

<u>Step 1: Combine</u>

Adding a negative number is same as subtracting a number.

-1.6 + (-2.4)

-1.6 - 2.4

-4

Answer: -4

5 0

3 years ago

Read 2 more answers

What is 36/48 simplifiied?

Sunny_sXe [5.5K]

36/48 simplified is 3/4

divide both by 12
36÷12
3
48÷12
4

3 0

3 years ago

Read 2 more answers

What is 2(9)0-7+3 to the 3rd power

RSB [31]

Answer:

I got -64

Step-by-step explanation:

The begging multiplication is 0 and subtract -7 is becomes just -7 then add 3 and it is -4 to the third power is -64

8 0

3 years ago