Answer:
2n - 10 = 12
Step-by-step explanation:
the difference of twice a number and 10 is equal to 12
= twice a number minus 10 equal to 12
=> 2n - 10 = 12
Answer:
Percent Change is 16%
The change is increased.
Step-by-step explanation:
The original amount = 25
Amount increase = 4
We need to find percent increase
The formula used is: 
Putting values in formula
So, Percent Change is 16%
The change is increased.
Answer:the rock would be at a point 12 m from water
Step-by-step explanation:
1/3 divide by 1/4
flip the 2nd number and the sign from division to multiplication
1/3 x 4/1
multiply
4/3
Answer:
164 and 287
Step-by-step explanation:
Their difference is 7-4 = 3 ratio units, so each ratio unit must stand for 123/3 = 41.
Then the numbers are 4·41 and 7·41, or 164 and 287.
