Jan 7 math quiz

b/3 - 10 = -5 >> b/3 = -5 + 10 >> b/3 = 5 >> b/3 (3) = 5 (3) >> b = 15

Solve: r/4 - 12 = -5

2k - 10 = 20 >> 2k = 20 + 10 >> 2k/2 = 30/2 >> k = 15

Solve: 7k - 14 = 42

-4 = 16 + 2c >> -4 - 16 = 2c >> -20/2 = 2c/2 >>> -10 = c
Solve: -12 = 24 + 4b

5 - 3c = -16

-1/2 h - 4 = -10 >> -1/2h = -10 +4 >> -1/2h (2) = -6 (2) >> 1h = 12 >> h = 12

Solve: -1/3y - 6 =-11

16 - r/7 = 21

2(y + 4) = 24 >> 2(y + 4) / 2 = 24/2 >> y + 4 = 12 >> y = 12 - 4 >> y = 8

Solve: 3(y + 5) = 21

7(p-3) = 35

-48 = 6(v + 2)

(y + 2)/ 4 = 6 >> (y + 2)/4 (4) = 6 (4) >> (y + 2) = 24 >> y = 24 - 2 >> y = 22

Solve
: (x + 3)/2 = 5

(a - 4)/3 = -7

(k + 1)/-2 = -8

10 = -2(2d - 7) >> 10 = -4d + 14 >> 10 -14 = 4d >>> -4 = -4d >> 1 = d

You can also solve like this: 10 = -2(2d - 7) >> 10/-2 + -2(2d - 7)/-2 >> -5 = 2d - 7 >> -5 + 7 + 2d >> 2 = 2d >> d = 1

Solve: 15 + -3(w - 2)

Joe's test scores were 2 points higher than Tabo's scores. Joe's score was 100. What was Tabo's score?

1. t is Tabo's score
2. Joe's test scores were 2 points higher than (more than - add) Tabo's scores >> t + 2 = 100 >> t = 100 - 2 >> t = 98 >> Tabo's score was 100

Solve:

Kelly's test scores were 6 points higher than Michelle's scores. Kelly's score was 88. What was Michelle's's score?

I paid $20 for a shirt and a pair of shoes. The shirts was $10. How much were the shoes?

1. s = shoes
2. shoes + shirt = $20
3. s + 10 = 20 >> s = 20 - 10 >> s = 10 >> shoes were $10

Solve
I paid $32 for a shirt and a sweater. The shirts was $8. How much were the shoes?

The lowest temperature in Louisiana is 30 degrees lower than the highest point. The temperature of the lowest point is -1 degrees. Find the temperature of the highest point.

1. Highest point = h
2. The lowest temperature in Louisiana is 30 degrees lower than (subtract) the highest point.
3. h - 30 = -1 >> h = -1 +30 >> h = 29 degrees

Solve:

The lowest point in Louisiana is 543 feet lower than the highest point. The elevation of the lowest point is - 8 feet. Find the elevation of the highest point.

a basket of 20 apples was put into plastic bags of 4 apples per plastic. How many bags where made?
1. b = number of bags
2. 20 apples was put into plastic bags of 4 apples per plastic = 20/4
3. b = 20/4 >> b = 5 bags

Solve:

A class of 30 students is separated out into equal sized teams resulted in 5 students per team. find the number of teams

Shirts are $2 per shirt. If i paid $10 for shirts, how many shirts did I buy?

1. s = number of shirts I bought
2. $2 buys 1 shirt >> $2 = 1 shirt
3. $10 buys s shits >>$10 = s
4. 2s = 10 >> s = 5 shirts

Solve:

Granola bars are on sale for $0.50. If Brad paid $5 for granola bars, find how many bars he bought.