Chapter 2 Review Algebra I. Use Order of Operations to Solve -2 – (7- 3) ÷ 4 -2 – (4) ÷ 4 -2 – 1 = -3.

Chapter 2 Review

Algebra I

Use Order of Operations to Solve

-2 – (7- 3) ÷ 4

-2 – (4) ÷ 4

-2 – 1

= -3

Simplify each expression

(5x • 3) – 4x + 7

= 15x – 4x + 7

= 11x + 7

Evaluate each expression

a = 1, b=7, and c = -2

3a + ab – c

= 3(1) + 1(7) - -2

= 3 + 7 + 2

= 12

Use replacement set to solve

C = {10, 11, 12, 13}

+ 7 = 12

C = {11}

Determine whether each pair of ratios forms a proportion.

, ,

336≠312 648 = 648

No yes

Solve for x.

-5 = x + 9

X = -14

Solve for x.

x + (-4.2) = 8.6

X = 12.8

Solve for x.

x + (-5) = -2

X = 3

Solve for x.

X – (-⅝) = ¾

X = ⅛

-4a – 1 = -1

-4a = 0

a= 0

-2t + 4 = 10 – t

-t = 6

t = -6

11 = ½ b – (-3)

8 = ½ b

16 = b

b = 16

-2( t -2) = 10 – t

-2t + 4 = 10 – t

-t = 6

t = -6

Solve the ratio

=

5h = 72

H = 14.4

Solve abstractly

7x – c = b Solve for x.

7x = b + c

x = b + c

7

Write and solve the equation that corresponds to the statement.

The sum of y and negative 3 is five.

Y + (-3) = 5

Y = 8

During one week, Damon made deposits in his checking account of $532.40 and $450.98. He wrote a check for $837.75. By how much did his account increase or decrease during the week?

$532.40 + 450.98 - $837.75

= $145.63 increase

The sum of two consecutive integers is 125. Find the integers.

x + x + 1 = 125

2x + 1 = 125

2x = 124

X = 62

The integers are 62 and 63.

Find the principal when the interest is $300 at 5% rate over 5 years.

I = prt

300 = p (5%) (5)

300 = .25 p

1200 = p

P = $1200

At the Central Perk coffee shop, Destiny sold 30 more cups of espresso than Cappuccino, for a total of $163.50 worth of the drinks together. How many cups of each were sold.

2(x + 30) + 2.5x = 163.50

2x + 60 + 2.5x = 163.50

4.5x = 103.50

X = 23 cappuccino and 53 espresso

Coffee Number Cost per cup Value

espresso X + 30 $2.00 2(x + 30)

cappuccino x $2.50 2.5 x

total 163.50