Equations 1
4w=48
w=12
2x + 5 = 13
x = 4
An unknown number represented by a letter is...
What is a variable?
When 7 is added to a number, we get 25. Write the equation.
7 + x = 25
48 ÷ x = 6
x = 8
x ÷ 12 = 12
x = 144
5d - 11 = 24
d = 7
A math sentence with a mystery number and equal sign in it is called...
What is an equation?
Juan had some candies. He gave 5 candies to his friend and now he has 18 candies. How many candies did Juan initially have ? Write the equation.
x - 5 =18
x - 104 = 52
x = 156
e/4 - 2 = 5
e = 28
In a word problem, if I have to compare numbers or put two numbers together, I have to use the following math operations:
What is addition and subtraction?
Devante has some money. He gave one fourth of the money to Lilo. If Lily gets $8 from Devante, write the equation to showhow much money did he have initially ?
1/4(x ) = 8
9x = 36
x = 4
12 x f = 132
f = 11
16 + 6h = 46
h = 5
In a word problem, if I have to add the same number repeatedly or share a group of something equally, I have to use the following math operations.
What is multiplication and division?
Jacob has some number of candies and Manny has 35 candies. If Jacob has candies 5 times as Manny, how many candies does Jacobi have ?
Jacob's amount = 5(Manny's amount)
or
Jacob's amount/5 = 35: x/5 =35
Solve for t:
d = rt
t = d/r
Solve for y:
V = 2t + 3y
y = (V-2t)/3
The most coolest, funniest teacher in the world is named...
Who is Mr. Morande?
Bob called his brother long distance on Tuesday. The first 10 minutes cost $4, and each minute after that cost $0.20. Write the expression to represent the cost to talk long distance.
4 + 0.20(x -10)