In a jar of coins, the ratio of nickels to dimes is 5: 7. if the jar contains 350 dimes, how many nickels are there?
a) 200
b) 225
eliminate
c) 250
d) 500

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

actually what is a question i don't understand