Answer:
3x+4 Ralph is currently 12 years old.
Step-by-step explanation:
You can find the equation by reading the scenario given. When you read it, it says that Ralph is 3 times as old as Sara and since her current age is going to be used to represent x you will first get 3x. That automatically eliminates the second and third choice given. It then says the equation is for Ralph's age in four years which means to add four to the equation. This gives you 3x+4 as your equation.
When something is tripled and then in a few years it is doubled, it is easiest to first try the number that is being added. So in this case the number is four. When you multiply 4 by 3 you get 12. If Sara is 4 she'll turn eight in four years and if Ralph is 12 he'll turn 16 in four years. 16 divided by 2 is 8 which shows you that Ralph is currently 12
Answer:
y -3 = (-1/2)(x - 5)
Step-by-step explanation:
Slope of line: Notice that if we go from 7 to 5, the 'run' is -2 and the corresponding 'rise' from 2 to 3 is 1. Thus, the slope is m = -1/2.
Using m = -1/2 and the point (5, 3), we write the equation of this line in point-slope form as:
y -3 = (-1/2)(x - 5)
Answer:
Step-by-step explanation:
can say there are 3 square to 4 circles or the ratio of squares to circles is 3:4 ... This means that in our ratio of 6:9 we can divide both numbers by 3 and the ratio ... Initially the ranger catches and tags 50 out of the whole population of deer. ... 10. 30 x = 150. 8. In a class the ratio of boys to girls is 3:5. If there are 32 kids in the ...
67 feet or 22 yards 1 foot
He needs 4 boxes :)
Dozen= 12
48 ÷12=4