Aresearcher for paint company is measuring the level of a certain chemical contained in a particular type of paint. if the paint contains too much of the chemical, the quality of the paint will be comprised. on average each can of paint contains 10 percent of the chemical. how many cans of paint should the sample contain if the researchers wants to be 98 percent certain of being within 1 percent of the true proportion of this chemical

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

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof

answer: the answer for that is 22/3