Answer:
Large books = 11
Small books = 6
Step-by-step explanation:
7x + 5y = 107
7x = 107 - 5y
x = 107/7 - 5y/7
5x + 7y = 97
5 (107/7 - 5y/7) + 7y = 97
535/7 - 25y/7 + 7y = 97
535/7 + 24y/7 = 97
535 + 24y = 679
24y = 679 - 535
y = 144/24 = 6: So x =
7x + 5(6) = 107
7x = 107-30
x = 77-7 = 11
1/3h - 4(2/3h-3) = 2/3h -6
first distribute to take away the parenthesis
1/3h - 8/3h + 12 = 2/3h -6
there are different ways to go about this but i would multiply everything by 3h to just take away all those denominators, making it simpler to solve
1 - 8 +12(3h) = 2 - 6(3h)
simplify
-7 + 36h = 2- 18h
simplify
+7 +18h +7 +18h
54h = 9
/54 /54
h = 9/54
h = 1/6
It is 3 meters for each piece and in centimeters, that would be 300.
Answer:
1/7y and 2/7
Step-by-step explanation: