Use elimination to solve the following system. x+y= 10
3x + 3y = 30
A. (0, 10)
B. (10,0)
C. no solution
D. infinitely many solutions
Hurry !

D its

Step-by-step explanation:

Since x+y = 10(1)

And 3x+3y = 30(2)

We can see from (2) that 3(x+y) =30;

Also same as saying x+y = 30/3 which is equivalent to x+y = 10.

So in this case we have many possible values

x = 0, y = 10 and vice versa

x = 1, y = 9 and vice versa

x = 2, y = 8 and so on

So the question has a lot of solutions

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).