System of equations + equation - practice problems
Number of problems found: 1259
- The sum 38
The sum of two decimal numbers is four. Their difference is one. What are the numbers? - Three simple equations xzy
X-2y + 2z = -1 2x + y-z = 3 3x + 2y + z = 2 - Null points
Calculate the roots of the equation: 3 |x +4| +3 |x +5| +2 |x +4| = 30 - 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? - Consecutive 7556
The sum of three consecutive integers equals three times the middle number. Specify these numbers. - System: 4681
Solve the system: (x + 5) (y-2) = (x-1) (y + 1) (x + 1) (y + 1) = (x + 5) (y-1) - Find d 2
Find d in an A. P. whose 5th term is 18 and 39th term is 120. - Isosceles trapezoid
Perimeter of the isosceles trapezoid is 48 cm. One side is two times greater than the second side. Determine the dimensions of the trapezoid. - Conjugate equation
Find the numbers of a and b; if (a - bi) (3 + 5i) is the Conjugate of (-6 - 24i) - Angles - triangle
Find the measure of the angles of the triangle ABC if: the measure of angle A is the measure of angle C and the measure of angle B =½ of the measure of angle C. - Large family
I have as many brothers as sisters, and each of my brothers has twice as many sisters as brothers. How many children do parents have? - The ratio
The ratio of the two numbers is 4, and their sum is 75. Determine both numbers. - Two numbers 7
The sum of two consecutive even numbers is 30. Find the numbers. - Substitution
Solve equations by substitution: x+y= 11 y=5x-25 - Calculate 4013
In a triangle, one internal angle measures 36 degrees. The second angle is twice the third angle. Calculate unknown angles. - FX parabola
Determine the equation of the parabola going through the following co-ordinates (1;2), (-1;-2), and (2;7) - Angle
Determine the size of the smallest internal angle of a right triangle which angles forming the successive members of the arithmetic sequence. - Product
The sum and the product of three integers are 6. Write the largest of them. - Y-intercept
Find the y-intercept of the graph (-3,-3), (4,3), (8,3). The x-intercept is 1/2. - An integer
An integer is 17 more than five times another. If the product of the two integers is -6, then find the integers.
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