Anything with a zero denominator is undefined.
Answer:
x = -3, y = -0.512
x = -1, y = -3.2
x = 0, y = -8
x = 2, y = -50
Step-by-step explanation:
3.5 / 9
(35 / 10) /9
35 / 10 ÷ 9
35 / 10 × 1/9
35 / 90
5 into 35 is 7, and 5 into 90 is 18
7 / 18
So it is 35 / 90 or 7 / 18.
Unknown values can be taken as anything , for example : the most common is x for unknown values and sometimes, for angles we can take θ(theta).
it is totally upto you!
Child=x
Adult=y
y=3x
5.2x+9.9y=767.8
5.2x+9.9(3x)=767.8
5.2x+29.7x=767.8
34.9x=767.8
x=22
