270 / 3 ( (4 - 3) 3 - (-9) ) - 53
270 / 3 (1 x 3 - (-9) ) - 53
270 / 3 (3 + 9) - 53
270 / 3 x 12 - 53
In PEMDAS, with multiplication and division, you must go left to right, not multiplication then division.
90 x 12 - 53
1080 - 53
1027 is your answer
Answer:
I think the answer is 10 hours
the 11.95 seems wrong
Step-by-step explanation:

multiply by 22.5 y
3.75 y + 22.5 = 6y
y = 10
Answer: 3
Step-by-step explanation:
There are 5 quarters and 3 dimes.
Let's illustrate it as 
Now adding 5 quarters and 5 dimes, we get
.
5/3 is not equal to 10/8 hence it no longers has the ratio of 5:3 but now has the ratio of 5:4