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Answer:
6.47
Since it's just asking for the other side of the diameter, it's equivalent to the radius given already.
290 divided by 10(value of a dime)= 29
answer is 29 dimes
<span>Equation:
silver + silver = silver
0.45x + 0.60(40-x) = 0.48*40
----------------
45x + 60*40 - 60x = 48*40
--------
-15x = -12*40
x = (4/5)40
x = 32 lbs (amt of 45% slloy needed)
40-x = 8 lbs (amt of 60% alloy needed)</span>
