- A paint mixer wants to mix paint that is 10% gloss with paint that is 35% gloss to make 6 gallons of
paint that is 30% gloss. How many gallons of each
paint should the paint mixer mix together?

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

you can use a^2+ b^2=c^2

the answer for the second equation is (4,0)