let h= history books
science books = s
h=2s there are 2 times as many history as science so to get them equal we double the science
h+s=81 there are 81 total history and science books
2s+s=81 substitute 2s for h in the above equation
3s = 81 combine like terms
s = 27
There are 27 science books
h=2s
h=2(27)
h=54
there are 54 history books
Y = 11
random text bla bla bla
Answeep-by-step explanation:
he was 76
jk i am stupid and this is nit the right i just wanted to know how t felt to help someone
Answer:
the answer for y is 9 and x is 9✔2( the check is square root symbol)
.04*7115.68=284.6272
$284.62 or $284.63 (depending on how lenient your teacher is with rounding)
