Equations practice problems - page 51 of 240
Number of problems found: 4794
- Arithmetic mean - parabola
Find the value of k so that k² + 2k – 3 is the arithmetic mean between k² + 4k + 5 and k² – 6k + 10.
- Žaneta 78044
Juraj and Žaneta are 48 years old. Juraj is twice as old as Žaneta. How old is Juraj, and how old is Žaneta?
- Geometry: 78014
Good day, Even though it is a trivial task, I don’t know how to deal with it. This is analytic geometry: Find all integers a, b, and c such that the line given by the equation ax+by=c passes through the points [4,3] and [−2,1]. Thank you for your answer
- Hard equations
If a<b and c<d and a+b all/2 = c and c+d all/2 = b, and if d-a = 60, what is b-c?
- Solve 16
Solve for the value of the variables x: y:30=3:21
- Cuboid's diagonal
The cuboid has a body diagonal u=25 cm, and side b is one-third longer than side a. What is the volume of the cuboid?
- The midpoint 2
Find the value of x if M is the midpoint of PQ, PQ=10x−7, and PM=14.
- Solve 15
Solve equation with fractions 29/12=24/12+?/12
- A solution
A solution of salt and water has 15% salt by weight. From it, 30 kg evaporated, and the solution now contains 20% salt. Find the original quantity of the solution.
- Year salary
2/5 of a man's salary is 40,000. What is his salary?
- Full of water
A man removed 2/7 of a tank full of water. If it now contains 450 liters, how many liters does it hold when full?
- Angles in a triangle
In a triangle, the first angle measures a number plus 45°, and the second angle is 30° less than the first angle. The third angle is two times the number more than the first angle. What are the measurements of each angle of the triangle?
- You buy
You buy two soft drinks and 24 toffees at the tuck shop. One soft drink costs six times as much as one toffee, so your total purchase cost is R54. Determine the cost of one toffee.
- I spent
I spent 3/8 of my money in one shop,1/4 in a second shop, and 1/8 in a third shop. I then had $5 left. How much did I start with?
- Cows and pigs
There are 3/4 as many cows as pigs on an animal farm. If there are 35 pigs and cows on the farm, how many of them are pigs?
- Chocolates left
What is the equation for Mark? He had 84 boxes of candy to sell, half of which were dark chocolate and the other half white chocolate. He sold 75% of dark chocolate and 40% white. How many did you have left over?
- A father 2
A father gave 1/3 of his land to the daughter and the remainder to the son. Son donates 3/4 of his land for the playground. He built a house in half of the remaining area, and the other half was sold for rs.1 million. 1) give the son's portion as a fracti
- Add number
Suppose the same number is added to the one near raider and denominator of math fractions seven and nine. The result is .9. What is the number?
- One angle
One angle is 10 degrees more than four times the measure of the other angle. Together they have a sum of 120 degrees. What is the measure of each angle?
- Problem
Problem Solving: The sum of three consecutive numbers is 93. What is the difference between the largest and the smallest number?
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