Equations practice problems - page 10 of 211
An equation is a statement that asserts the equality of two expressions, which are connected by the equals sign =. Solving an equation containing variables consists of determining which values of the variables make the equality true. The variables for which the equation has to be solved are also called unknowns, and the values of the unknowns that satisfy the equality are called solutions of the equation.Number of problems found: 4214
- Simple coefficient
Find the value of k; if x = 3, y = 2 is a solution of the equation 2x + 3y = k. - Find all 2
Find all the complex solutions (write the answer in the form x+iy) of the system. {|z-12|/|z-8i|=5/3 ; |z-4|=|z-8| - Three rationals
Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50.25 more than x. If y=15.5, what is the value of z? - A sandbox
3/4 a sandbox has an area of 20 square feet. The length is 6 1/2 feet. What is the width of the sandbox? - Math class
There are a total of 30 students in a math class. The number of boys is 2 more than 3 times the number of girls. How many boys are in this math class? - School library 2
There are 3 times as many books in the town library as in the school library. The town library has 2,676 books. A. How many books are in the school library? B. Which of the following is a division equation that can be used to find the number of books in t - Chelsea
Chelsea Donahue has a 20-year home mortgage of $74000 at 7.50% interest and will pay a $534 annual insurance premium. Her annual property tax will be $1534. Find her monthly PITI payment. - You bought
You bought a table with chairs, and you were charged $145.86. The sales tax was 4%, and the set was 15% off. What was the original price? - On Monday
On Monday, Jason used 2/7 of his money to buy a book. On Tuesday, he used 1/2 of his money to buy a toy. If he has 6 dollars left, how much money he has in the beginning? What fraction of money is left? - Deon made
Deon made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was 18.40. If the beads cost a total of 9.60, how much did each pendant cost? - The temperature 38
The temperature has been dropping 2 degrees every hour, and the temperature at 10:00 AM was -15 degrees Fahrenheit. At what time was the temperature 0 degrees Fahrenheit? - A number 6
A number minus 7 is = 9. What is the number? - Three 222
Three tractor drivers working on a private farm together played 24 hectares of land in a shift. The first drive played half the second, and the second 4 hectares more than the third. Calculate the number of hectares played by the first, second and third. - For triangle
For triangle XYZ, ∠X = (6g + 14)° and the exterior angle to ∠X measures (5g + 45)°. Find the measure of ∠X and its exterior angle. - The perimeter 10
The perimeter of a rectangle is 162 inches. The length is 35 inches longer than the width. Find the length and width of the rectangle. - The masses
The masses of a mother and a daughter differ by 30kg and are in the ratio of 8:5. Find the mass of each. - The sum 32
The sum of three consecutive odd numbers is 33. What are the three consecutive odd numbers? - The sum 31
The sum of two fractions is 13 3/4. Their difference is 8 1/5. What are fractions? - What number
What number must be added to both the numerator and denominator of 3/5 to get 5/6? - The sum 30
The sum of 8 times a number and 5 times another number is 184. The first number minus the second number is -3. What are the numbers?
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