Word problems
Kathryn went to the fair it costs $16 to get in and $4 for each ride (r) and she spent $68. Write an equasion to represent this scenerio.
16 + 4r = 68 or 4r + 16 = 68
Donna went shopping for hiking gear. She bought 4 hiking sticks and 2 pairs of shoes, for $130. Her friend wants to know the price of the pair of shoes, but she can't find her receipt. She knows the hiking sticks cost $20. Which equation could Donna use to determine the price of a pair of shoes (s)?
a) (4 + 20)s = 130 b) 4(20) + 2s = 130 c) 4s + 3(15) = 130 d) 20 + 4s = 130
b) 4(20) + 2s = 130
5x =35
x=7
Negative times a negative is a _____?
A negative times a negative is a positive
-4x - 8 - 24x - 8y + 19 - 6
-28x - 8y + 5
James went to the movies, he paid $11 for a ticket, he bought 2 boxes of candy (b), and 1 soda (s) that cost $5. He spent a total of $24. Write an equasion to represnt the situation.
11 + 5s + 2b = 24
2b + 11 + 5(1) = 24
A shoe store is having a 35% off sale. Which expressions show the total cost if you buy pairs of shoes (p). Select all that apply
a) p - 0.35 b) 0.65p c) p - .35p
b and c.
-3x = -18
X = 6
Whats the first step when solving this equation
2(4a-7)
You distribute
3.6+8.3d-6.7c+2(c-d)
3.6+8.3d-2d-4.7
Raya built a fence around her rectangular pool. She used 60 feet of fence. If the width of the pool fence is 11 feet, what is the length?
2(l+w)= 60
2(11 +w)= 60
22 +2w = 60
2w = 38
w = 19
The width of the pool is 19 feet.
What is the next step to simplify this expression?-9/100 + 38/50 - 0.47
a) Add and subtract the fractions and decimals
b) Convert decimal to fractions with a common denomonator of 50
c) Convert all terms to equvilent fractions with a common denomonator of 100
c).
5x + 3 = 8
numbers on which we operate can be moved or swapped from their posistion without making any difference to the answer is a what property?
A Commutative Property
-7x-5x+8y-y+4+6
-12x + 7y + 10
Natasha is going to Sam's to shop, but she must have a membership there. It costs $15 for a membership and when she is shopping she buys 3 bags of pickled marshmallows (P) but loses her recept. She spent $51 at Sam, how much does one can of pickled marshmallows cost?
It costs $12 per can of pickled marshmallows.
The difference of eight more than x doubled and the product of 6 and x. Choose all that are equivalent.
A) 2x+8-6x
B) 2(x+8)-6x
C) 2(x+16)-6x
D) 2x + 16 - 6x
B and D.
X/9 = 4
X = 36
A technique for simplifying expressions by adding or subtracting terms that have the same variable and exponent is called?
Combining like terms
-4(x+2)-8(3x-y)+19y-6
28x+27y-14
Ashley gets the class a science game each question you get right you get 4 points and 17 points every page. Donna got 3 right but she had 70 points how miny pages did she do?
Donna did 4 pages of the science game.
3(2 - x) + 5 = 2x + 6 - 4x
X = 5
A number or symbol that is mulitplied by a variable in a mathematical expression is called?
A coefficient
-0.2+25.2 = 3.6(2a+7)-7.4
-0.2a + 25.2