Dave bowers collects u. s. gold coins. he has a collection of 50 50 coins. some are $10 coins, and the rest are $20 coins. if the face value of the coins is $ 740 740, how many of each denomination does he have?

For this case, the first thing we must do is define variables.

We have then:

x: number of $ 10 coins

y: number of $ 20 coins

We now write the system of equations that models the problem:

The graphical solution (see attached image) is given by the intersection of the equations.

We have then:

Dave has:

26 $ 10 coins

24 $ 20 coins

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: