Sincere is holding 20 coins, all of which are either dimes or quarters. They have a value of $4.10. Determine how many coins of each he is holding.

14 Quarters and 6 Dimes

Step-by-step explanation:

You write out two equations each with 2 unknown variables

Let x = number of dimes

Let y = number of quarters

Two Equations:

y + x = 20

.25y + .10x = 4.10

Now we have two equations with two unkowns so we can substiture

x = 20-y , now plug x back into your 2nd equation

.25y + .10(20-y) = 4.10

.25y + 2 - .10y = 4.10, now solve for y

.15y = 2.10

y = 14, Plug y into your first equation

x + 14 = 20

x = 6

Final 14 Quarters and 6 Dimes

eve and marks ratios are equivalent

step-by-step explanation:

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: