Equation - examples - page 50
Alice spent 5/11 of her money on a back pack. She has $42 dollars left. How much was her back pack?
- 12 apples
12 apples and 2 loaves of bread cost 5.76 and 6 apples and 3 loaves of bread cost 7.68. How much is a loaf of bread?
- Evaluation of expressions
If a2-3a+1=0, find (i)a2+1/a2 (ii) a3+1/a3
- Father and son
Father and son weigh together 108kg. The father weighs 2.6 times more than his son. How much does weight my father and son count?
- Supplementary angles
One of the supplementary angles is larger by 33° than the second one. Calculate the angles size.
- 40% volume
40% volume with 104 uph (units per labor hour) 8 people working. What is the volume?
- Intercept with axis
F(x)=log(x+4)-2, what is the x intercept
Twenty rabbits are put in 4 cells so that there are different number of rabbits in each cell contains at least 3 rabbits. What is the largest possible number of rabbits in one cell
Find the intersections of the function plot with coordinate axes: f (x): y = x + 3/5
- Mysterious number
The magician thinks the number: "The mysterious number is first divided by minus five, dividing the result by three, multiplying the number by ten, and dividing the resulting number by minus four. This gives result 5. Can you reveal the mysterious number?
- A man
A man spends 5/9 of his money on rent, and 5/16 of the remainder on electricity. If the final balance remaining is 550 find how much was spent on rent
- Chewing gums
For 3 chewing gums, you will pay 20 CZK less than 7 chewing gums. How much is 1 chewing gum and how much does a 5pcs package cost?
Solve equation with negatives: X/(-5) + 2 = -9
- Mixture 2
How many liters of water must be added to 7 liters of a 20% solution to obtain a 10% solution?
- Diofant equation
250x + 120y = 5640
- Value 4
If 5/18=425 what is the value 13/18?
A taxi ride costs $3 plus $2.50 per mile. Write and Graph an equation in two variables that represents the total cost of a taxi ride.
- Two numbers 6
Fill two natural numbers a, b: 7 + blank- blank = 5
Kim needs 3/4 cup of flour to make 12 cookies. How much flour would she need to make 60 cookies?
- Commission 2
Mr gomez sells used cellphones. His commission for every cellphone sold is 20%. If his total sales is Php 33850, how much is his commission? Please, please, please show your solution.
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?