So the greatest common factor of 40 and 16 is 8
40/8 : 16/8
5:2
The simplest form of the ratio 40:16 is 5:2
Hope this helps!
Answer:
b=(2a-1)/(3a-1)
Step-by-step explanation:
a=(b-1)/(3b-2)
3ab-2a=b-1
3ab-b=2a-1
b(3a-1)=2a-1
b=(2a-1)/(3a-1)
![\qquad\qquad\huge\underline{{\sf Answer}}♨](https://tex.z-dn.net/?f=%5Cqquad%5Cqquad%5Chuge%5Cunderline%7B%7B%5Csf%20Answer%7D%7D%E2%99%A8)
Let's solve ~
![\qquad \sf \dashrightarrow \: - 10 + 5(78 + 8) < - 4s + 3 - 8](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%20-%2010%20%2B%205%2878%20%2B%208%29%20%3C%20%20-%204s%20%2B%203%20-%208)
![\qquad \sf \dashrightarrow \: - 10 + 5(86) < - 4s - 5](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%20-%2010%20%2B%205%2886%29%20%3C%20%20-%204s%20%20-%205)
![\qquad \sf \dashrightarrow \: - 10 +430 < - 4s - 5](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%20-%2010%20%2B430%20%3C%20%20-%204s%20%20-%205)
![\qquad \sf \dashrightarrow \: 420 + 5 < - 4s](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%20420%20%2B%205%20%3C%20%20-%204s%20%20)
![\qquad \sf \dashrightarrow \: 42 5 < - 4s](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%2042%205%20%3C%20%20-%204s%20%20)
![\qquad \sf \dashrightarrow \: 42 5 \div 4 < - s](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%2042%205%20%5Cdiv%204%20%3C%20%20%20-%20s%20%20)
![\qquad \sf \dashrightarrow \: 106.25 < - s](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%20106.25%20%3C%20%20%20-%20s%20%20)
Inequalities change when it is multiplied by -ve number
![\qquad \sf \dashrightarrow \: - 106.25 > s](https://tex.z-dn.net/?f=%5Cqquad%20%5Csf%20%20%5Cdashrightarrow%20%5C%3A%20%20-%20106.25%20%20%3E%20%20%20%20s%20%20)
They way I would do it other than with a calculator would be
27 x (90 - 0.5) which is the same as 27 x 89.5
=> 27 x 90 - 27 x 0.5
27 x 90 is (3 x 9) x 90 or 3 x 9 x 90
9 x 90 = 810
3 x 810 = 2430
Then subtract 27 x 0.5, or 27 / 2
2430 - 27 / 2
=> 2430 - 13.5
= 2416.5
Final answer:
2416.5
Hope I helped :)
Answer:
Step-by-step explanation:
B d d c b I think