Suppose you have a coin collection of dimes and quarters containing 46 coins. If you have 6.70 dollars, how many of each type of coin do you have?
Question
Answer:
Answer:The number of dimes = 32The number of quarters = 14Step-by-step explanation:Here, the total number of coins combined = 46Let us assume the number of dimes = mSo, the Number of quarter = Total Coins - Number of dimes = 46 - mNow,as we know:1 dime = $0.1So, m dimes = m x ($0.1) = $(0.1 m)1 Quarter = $0.25So, ( 46 - m ) Quarters = (46 - m ) x ( $ 0.25) = 11.5 - 0.25 mAlso, given the total amount of coins = $ 6.70⇒ Value of (Dimes + Quarters) = $ 6.70 or, (0.1 m) + 11.5 - 0.25 m = 6.70-0.15 m = - 4.8or, m = 4.8/0.15 = 32⇒ m = 32Hence, the number of dimes = m = 32And the number of quarters = 46 - m= 46 -32 = 14
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