SOLUTION: if 300 jellybeans cost x dollars. how many jellybeanscan you purchase for 50 cents at the same rate? ans is 150/x. could you explain How to get the ans. im doing a practice test

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Question 174250: if 300 jellybeans cost x dollars. how many jellybeanscan you purchase for 50 cents at the same rate? ans is 150/x. could you explain How to get the ans. im doing a practice test
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
this is a direct proportion problem
:
lets call our unknown number of jelly beans a
:
300%2Fx=a%2F.50cross multiply
:
xa=.5%28300%29divide by x
:
highlight%28a=%28150%2Fx%29%29