For a simultaneous equation in x and y if Dr=-25, Dy=50 and D=5. What is the value of x ?
a) -5
b) 1/5
c) 10
15
31​

How many grams must be adde to 970g to make 1 and a half kg

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0