Answer:
P = (65 - R) / 60
Step-by-step explanation:
Raul's grandfather is Miguel
Raul's sister is Paula
We are given that Raul’s age is the same as his grandfather’s age minus 60 times the age of his sister. If we write this mathematically, we have that:
R = M - (60*P)
Where R = Raul's age, M = Miguel's age and P = Paula's age
We are then given that Miguel is 65 years old, this means that M = 65
=> R = 65 - 60P
To find Paula's age, we make P the subject of formula, hence:
60P = 65 - R
=> P = (65 - R) / 60
We can use this expression to find Paula's age.
Answer:
x = 9
Step-by-step explanation:
1/2(6x - 10) + 10 = 5x - 13
3x - 5 + 10 = 5x - 13
3x + 5 = 5x - 13
3x + 18 = 5x
18 = 2x
x = 9
Answer:
1/12 hour
Step-by-step explanation:
Subtract 3/4 hr from 5/6 hr: use the LCD 12:
Subtract 9/12 from 10/12 hr: The difference is 1/12 hr.
Steve watched TV 1/12 hour longer on Tuesday than on Monday. That's 5 minutes.
Answer:
21:126
6:36
1:6
Step-by-step explanation:
If you would like to know what is half one added to three quarters, you can calculate this using the following steps:
half one + three quarters = 1/2 + 3/4 = 2/4 + 3/4 = 5/4 = 1 1/4
The correct result would be five quarters (5/4).
