Definition
What is a variable?
A variable is a letter that represents a missing number. Ex. (3x+4=13)
3x+2=14
what is the value of the variable?
X=4
8x5=4+b
1)what is the the product to the answer? 2)what is the value of b?
1) 40
2) b=36
2^3-8/4x2+7=
what is the correct answer
Answer;11
Farmer Jones has 25 hens. Each hen laid 6 eggs, but some eggs cracked. How many eggs did not crack?
1) write the expressions for the problem. Use the letter r to represent the missing number.
2) Find the solution. Clue: 19 eggs cracked
1) (25x6)-r
2) 131 eggs did not crack
what is a equation?
A equation is a a math problem that will equal to a your answer(product, quotient, sum, or difference.)
3y - 14 = 7
what is the value of y?
Y=7
36/2=6x
1)what is the quotient of the equation? 2) what is the value of x?
1) 18
2)x=3
18/3-7+2x5
What is the answer to this equation?
Answer;9
Eddie earns an hourly wage for delivering pizza. How much will he earn if he delivers pizza for 4 hours?
1) write an expression for the problem. Let r represent the missing number.
2) find the solution. Clue: Eddie earns $4.50 per hour
1) 4xr
2) 18 dollars in 4 hours
what is a linear equation?
A linear equation is a equation that has varibles.
45/(2x4)+1
5
10x=20+80
1) what is the product of the equation? 2) what is the value of x
1) 100
2) x=10
7-24/8x4+6
What is the answer to the equation?
Answer;1
If Alex feeds his pet turtle, the same amount of food twice a day, how much food will he feed his pet turtle in a week?
1) write an expression for the problem. Let r represents the missing number.
2) find the solution. Clue: Alex give his turtle 3 ounces of food at every feeding.
1) (2xr)x7
2) 42 ounces in a week
What is the order of operation?
The order of operations (Pemdas) stands for, Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. This tells you which operation to do first.
4y+16=20
What is the value of y?
Y=1
43-y+ 4=12+19
1) what is the answer to the equation? 2) what is the value of y?
1) 31
2)16
24-17/4x2+3
What is the answer to the equation?
Answer;19
Sue takes 5 more cookies than her friend Jill. If Sue puts 1 cookie back, how many cookies does she have.
1)write an expression for the problem. Let r represent the missing number.
2) find the solution. Clue: Jill takes 4 cookies
1) (r+5)-1
2) Sue had 8 cookies
What does a solving equation mean?
It means to find a solution to the equation.
4y-8+2=10
What is the value of y?
Y=4
112x16+n=1700+20+70+3
1) what is the answer to the equation? 2) what is the value of n?
1) 1793
2) 1
25/(8-3)^2-1
what is the answer to the equation?
Answer;0
Sally answered 5 problems incorrectly on her math test. If she didn’t answer the last two problems,how many problems did she answer correctly?
1) write an expression to the problem. Let r represent the missing number.
2)find the solution. Clue: The math test has 20 problem.
1) (r-5)-2
2) 13 of the problems she answered correctly.