Atin can collecting money on a store counter for the holiday season contains $15.89 in quarters and dimes. if there are a total of 74 coins, how many of each coin are in the tin?

x=quarters y=dimes

x+y=74

.25x+.10y=15.89

then substitute one equation into the next so...

y=74-x

.25x+.10(74-x)=15.89

.25x+7.4-.10x=15.89 then simplify

.15x=8.49

x=56.6 round up so 57 quarters

to find y just plug in x so...

57+y=74

y=17

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation: