You can work at most 20 hours next week. You need to earn at least $92 to cover you weekly expenses. Your dog- walking job pays $7.50 per hour and your job as a car wash attendant pays $6 per hour. Write a system of linear inequalities to model the situation.

Solution:

Let "x" be the time spent in dog walking job

Let "y" be the time spent in car wash attendant

Given that,

You can work at most 20 hours next week

"at most" means "less than or equal to" 20

Therefore,

Also given that,

Your dog- walking job pays $7.50 per hour

Your job as a car wash attendant pays $6 per hour

You need to earn at least $92 to cover you weekly expenses

"at least" means "greater than or equal to" 92

Thus, a inequality is framed as:

Thus eqn 1 and eqn 2 is the system of linear inequalities to model the situation

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.