Question

find the breath of a rectangle whose length is 4(2/7)m and perimeter is 15(3/7)m

Answer 1

Step-by-step explanation:

Let breath to be x.

Length = $\bold{4(\frac{2} {7})}$ =$\bold{\frac{8} {7}}$

A/Q,

Perimeter of rectangle = 2( Length + breath)

$\bold{15(\frac{3} {7}) } = \bold{2(\frac{8} {7}+x)}$

$\bold{\frac{45} {7\times2}} = \bold{(\frac{8} {7}+x)}$

$\bold{\frac{45} {14}} = \bold{(\frac{8} {7}+x)}$

$\bold{\frac{45} {14}- \frac{8} {7}} = \bold{x}$

$\bold{\frac{45 - 16 } {14}} = \bold{x}$

$\bold{\boxed{\frac{29} {14} = {x}} }$

Hence, breath = $\bold{\frac{29} {14}}$

$\bold\blue{please \:mark\: brainliest\: answer }$

Answer 2

Step-by-step explanation:

length=4(2/7)=8/7

breadth=x

perimeter=2(l+b)=15(3/7)=45/7

2(8/7+x)=45/7

(8+7x)/7=45/14

8+7x=45/2

7x=(45-16)/2

14x=29

x=29/14