If youre trying to solve for the variables you have to solve for one of them in one equation first, so if you solved for x in 2x+3y=16 youd get x=8-(3/2)y. Then youd have to sub in that x for the x in the other equation so youd get 3(8-(3/2)y)-2y=13 then solve for y. Once you have the value of y it should be the same in both equations. Plug that new value of y into the equation of youre choosing then sove for x
Answer:
The answer is B
Step-by-step explanation:
I did rise over run
By definition of ratios, if you consider 16 elements out of a total of 40 elements, you are considering the 16/40 of the total.
You may simplify this ratio, since both numerator and denominator are multiple of 8:
0.25 = 1/4, 0.8 : 4 = 0.2
