John has five times as many nickels as quarters and three times as many dimes as quarters. the total value of the coins is $8. how many of each coin does he have

4 quarters

20 Nickels

60 dimes

Step-by-step explanation:

4Q x 5 = 20N

20N x 3 = 60D

add them in to dollars you get one dollar each from the nickels and quarters and 6 dollars from the dimes.

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft