Ask question

Ask question

All categories

Anastaziya [24]

3 years ago

6

the length and width of the rectangle are in ratio 4:3.If the perimeter of the rectangle is 56 m find the length and width of th

e rectangle

2 answers:

nlexa [21]3 years ago

8 0

Answer:

length = 4x

width = 3x

perimeter = 56 m

also, perimeter = 2 (length + width) [from formula]

therefore, 2(4x + 3x) = 56m

2(7x) = 56m

14x = 56m

x = 56/14 m

x = 4m

Kipish [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Length : width = 4 : 3

Length = 4x

Width = 3x

Perimeter of rectangle = 56 m

2*(length +width ) = 56

2*(4x + 3x) = 56

2*(7x) = 56

14x = 56

Divide both sides by 14

x = 56/14

x = 4

Length = 4x = 4*4 = 16 m

Width = 3x = 4*3 = 12 m

You might be interested in

There are 120 planes on an airfield. If 75% of the planes take off, how many planes took off?

Soloha48 [4]

Answer:

You have to do 120 divided by 0.75 use a calculator

Step-by-step explanation:

7 0

3 years ago

PLASE ANSWER THIS QUESTION I GIVE YOU 18 POINTS

sukhopar [10]

Answer:

(a) 144

(b) 117

(c) 360

(d) 588

(e) 5472

Step-by-step explanation:

To find the LCM of two numbers, first find the prime factorization of each number. Then the LCM is the product of common and not common factors with the larger exponent.

2.

(a)

$72 = 2^3 \times 3^2$

$144 = 2^4 \times 3^2$

$LCM = 2^4 \times 3^2 = 8 \times 9 = 144$

(b)

$39 = 3 \times 13$

$117 = 3^2 \times 13$

$LCM = 3^2 \times 13 = 117$

(c)

$72 = 2^3 \times 3^2$

$90 = 2 \times 3^2 \times 5$

$LCM = 2^3 \times 3^2 \times 5 = 360$

(d)

$84 = 2^2 \times 3 \times 7$

$147 = 3 \times 7^2$

$LCM = 2^2 \times 3 \times 7^2 = 588$

(e)

$152 = 2^3 \times 19$

$288 = 2^5 \times 3^2$

$LCM = 2^5 \times 3^2 \times 19 = 5472$

6 0

3 years ago

Simplify the following completely, show all work.<br><br>4 + ✓-27

V125BC [204]

Answer:

4+3i $\sqrt{3}$

Step-by-step explanation:

the $\sqrt{-27}$ needs to be simplified

first, I broke it down to $\sqrt{-1}$ and $\sqrt{27}$

$\sqrt{-1}$ simplifies to i ;and can be broken down to $\sqrt{9}$ and $\sqrt{3}$

$\sqrt{9}$ can be simplified further to 3

Now all you have to do is put it together

4(which you didnt have to do anything to)+ 3i( 3 from the sqrt of 9 and i from the sqrt of -1) sqrt 3( which cant be simplified further)

8 0

3 years ago

A clerk at Agency Y has determined that at speeds of 25 pages per minute it is typical for 3 out of every 100 pages she photocop

nalin [4]

Answer:

180 pages

Step-by-step explanation:

Since her photocopy session is 25 pages per minute, the total number of pages photocopied in 4 hour session can be calculated as;

number of pages = time × speed

= (4 × 60) × 25

= 240 ×25

= 6000 pages

Thus, number of pages photocopied in 4 hours is 6000.

For every 100 pages, 3 would contain some type of printing error. The number of pages she expect with printing error during 4 hour session can be determined as;

= $\frac{6000}{100}$ × 3

= 60 × 3

= 180 pages

The expected number of pages with printing error during 4 hour photocopying session is 180 pages.

3 0

3 years ago

Please help me on this 8th grade math

Natali5045456 [20]

Answer:

It would be C.

Step-by-step explanation:

Dave has 4 times as many figures as Ben. Ben has y action figures, so it would be 4y. Then Jeff has 5 more action figures than Dave which would be addition, all together it would be (4y+5) more action figures) I hope that helps

4 0

3 years ago