DAY 3

Which one of these answers is equal to the problem?

Strategy: Think about your FAVORITE number. (DO NOT USE 0 OR 1) You are going to substitute your favorite number in place of all the Xs that you see in the problem and the answer choices.

PROBLEM3(X+2)+2(X-3)3(5+2)+2(5-3)3(7) + 2(2)21 + 4 = 25

My favorite number is 5. This is the number that I will substitute in place of X.

= 25

A5X5*X5 *5 = 25

B5X + 125* 5+1225+12=37

C5X - 125* 5-1225-12=13

D6X - 126* 5-1230-12=18

= 25

= 37= 13=18

**A matches!! Even though A is the answer, Always check all of the answers to make sure you are 100% right.**

Again, you need to match the answer choice that is equal to the problem.

Again, my favorite number is 5. I will use it to substitute it in place of X.

Problem6(X-3)-4(2-X)6(5 -3)-4(2-5)6(2)-4(-3)12 – (-12)12 + 12= 24

A-2*X+10-2*5+10-10+10=0

B2*X-102*5-1010-10=0

C10*X-2610*5-2650-26=24

D10*X+2610*5+2650+26=76

**C matches!! Even though C is the answer, Always check all of the answers to make sure you are 100% right.**

= 24

= 0

= 0

= 24= 76

READ the problem very carefully and identify the information they give you.

h = the amount that a hat costs

s = the amount that scarves costs

35 hats per h cost = 35h ,68 hats per h cost = 68h

28 scarves per s cost= 28s ,12 scarves per s cost = 12s

NOW, you know to look for “ 35h, 68h, 28s, 12s. Get rid of any answerChoice that does NOT pair up the right variable with the number.

Because 28 has an h and 68 has an s

Because 12 has an h and 68 has an s

Because 28 & 12 have an h and 35 & 68 have an s

CORRECT!! When you distribute the variables, you get35h+68h + 28s + 12s