3.1, 3.2 & 3.3
One, Two & Multi-Step Equations
One, Two & Multi-Step Equations
Solve for x.
x + 11 = 2
x = -9
The area of a square is 100 cm2. What is the perimeter?
40 cm
Solve for c.
27/c : 9/12
C=36
What percent of 55 is 11?
20
Isolate the variable I.
A = P + I
A - P = I
Solve for x.
4x - 5 = 23
x = 7
A dog groomer makes collars for dogs to sell at her shop. She sells each collar for $10. The collar materials cost $3 in material for each collar and a $105 fee to purchase the sewing machine. How many collars must the groomer sell to break even?
15 collars
Solve for M.
4/14 : 2M/49
M=7
What number is 15% of 88?
13.2
A = (bh)/2
(2A)/b = h
-3(x - 5) = -15
x = 10
A recipe for chocolate chip cookies calls for 3 cups of sugar for every 4 dozen cookies. How many cups of milk is needed to make 17 dozen cookies?
12 3/4 cups of sugar
Solve for x.
(x + 2)/ 10 = 35/50
x = 5
A 4oz steak dinner costs $19.95 with a 5.5% sales tax, what will the total bill be?
$21.05
Isolate the variable w.
P = 2L + 2w
(P-2L)/2 = w
Solve for x.
8(2x - 3) = 3(6x - 4)
x = - 6
Sara purchases a sweater on sale at Target. The original cost of the sweater is $17.95, but she received a 20% discount. How much will she pay for the sweater?
$14.36
Solve for y.
(32 - y)/y = 6/10
y = 20
A Black Friday deal is offering 25% off all jeans. A pair of jeans cost $24.95, what will be the sale price?
$18.71
Isolate the variable y.
-6x - 3y = 9
y = -2x - 3
Solve for x.
3(4x - 10) = 6(2x - 5)
Identity
Janet and her friends go out for lunch. Janets meal cost $25.97 she needs to apply a 5% tax and 20% tip. What is Janets total after tax and tip?
$32.72
Solve for p.
(p + 15)/42 = (p + 5)/ 14
p = 0
You have a coupon for the Kalahari for 15% off and there is a sales tax of 6.5%. The cost per night is $329.95. What is your total after a one night stay?
$298.69
Isolate the variable y.
-2x + 4y = 8
y = 1/2x + 2