Madison represented the sentence
"the product of 3 and the difference of -4 and the quotient of a number and -2 is at most 5"
by using the inequality 3 (-4 - n/-2) < 5
what is madison's error?

The mistake is that it can be 5.  They forget to include the equals in the less than or equals

Step-by-step explanation:

Start at the inside and work out

quotient of a number and -2

n/-2

difference of -4 and the quotient of a number and -2

-4 - n/-2

product of 3 and the difference of -4 and the quotient of a number and -2

3* (-4 - n/-2)

is at most 5

3* (-4 - n/-2)≤5

The mistake is that it can be 5.  They forget to include the equals in the less than or equals

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

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.