SOLUTION: jan buys 12 pen for $10.00. each pen cost the same amount. write a proportion to find the number of pens jan can buy for $15.00

Algebra.Com
Question 343588: jan buys 12 pen for $10.00. each pen cost the same amount. write a proportion to find the number of pens jan can buy for $15.00

Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
10/12=15/x
10x=180
x=18

RELATED QUESTIONS

Hi Joanne has some money. She can either buy 15 pencils or 9 pens with all her money.... (answered by math_helper)
A blue pen is $0.25 more expensive than a black pen. At the store, Ms. Wing buys 10 black (answered by josgarithmetic)
A student buys some pens for 400$. If the cost of each pens is 9$ less, he can buy 9 pens (answered by josmiceli)
James buys 4 pens and 3 notebooks for $19. A notebook is 50c more expensive than a pen. (answered by ewatrrr)
tyrels and dalia bought some pens and pencils. tyrel bought 4 pensand 5 pencils, which... (answered by stanbon)
If 10 pens and 15 markers cost $26, and 5 of the same pens and 10 of the same markers... (answered by solver91311)
The pen company can make 1000 pens in a single day for a cost of $55. If each region of... (answered by josgarithmetic,ikleyn)
Hi Mark bought a number of pens at an average cost of $2.50 He bought another pen for... (answered by mananth,greenestamps,josgarithmetic)
Mia has a certain amount of money. If she buys 4 pens and 1 pencil, she will have $5 left (answered by greenestamps)