95x = total distance traveled
x represents time
Answer:
1. So the porpotion should be 25/100 = x/120
You have this because you know that 25% of the dogs who go to ABC veterinarian need a rabies booster. So 100% of the dog should be 120 dogs, and now our job is to find how many dogs make up 25% percent of the total number.
According to our porpotion, we have:
(120 . 25)/100 = 30 (dogs)
Another way of understanding this is that you have to find 25% of the total amount, so just take that total number and multiply it with 25% or 25/100 which is 0.25 as well, that's why we multiply it with 25 first and then divide it to 100 later.
2.
*I guess there is no need of explaining it
0.9 × 550 = 495
A linear equation is an equation for a straight line. And yes that is a linear equation. Because<span> it is of the form
h(x) = mx + b
where m=0 and b = 23
h(x) = mx + 23</span>
- 5 = -7 .
____________________________________________This would be one way to write the expresion/equation; in which "x" represents the unknown number.
Now, to solve for "x" ;
____________________________________________Given:
____________________________________________ - 5 = -7 ;
Add "5" to EACH SIDE of the equation:
_____________________________________________ - 5 + 5 = -7 + 5 ;
to get:
= -2 ;
x = (-2 * 3) ;
_________________________________x = - 6 .
_________________________________
