19. A pet shop owner bought 320 leashes. 30% of these leashes were pink leashes and the rest were blue and green leashes. The number of blue leashes is 3 times the number of green leashes. How many blue leashes did she buy?

Answers

The number of the blue leashes will be 240.

What are linear equations?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

It is given that:-

A pet shop owner bought 320 leashes. 30% of these leashes were pink leashes and the rest were blue and green leashes.

The number of blue leashes is 3 times the number of green leashes.

The number of the blue leashes will be calculated as:-

L = 320

B + P + g = 320

{ (320 x 0.3 ) } + 0.7 ( B + g ) = 320

( 96 ) + ( 2.8g ) = 320

2.8g = 320 / 96

g = 222 / 2.8 = 80

Now B = 3 x g

B = 3 x 80

B = 240

Therefore the number of the blue leashes will be 240.

numberof the blueleasheswill be240.What are linear equations?relationbetween twovariables, if we plot the graph of the linearequationwe will get astraightline.It is given that:-shopowner bought320leashes.30% of theseleasheswerepinkleashes and therestwere blue andgreenleashes.numberof blue leashes is3 timesthe number ofgreenleashes.numberof theblueleashes will becalculatedas:-B = 240numberof the blueleasheswill be240.equationsfollow