So,
Let s represent the time Mo-Qui spent studying Spanish and h represent the time Mo-Qui spent studying History.
s = h + 30
s > 2 hrs. 15 mins. (he isn't done yet)
Substitute
2 hrs. 15 mins. = h + 30 mins.
Subtract 30 mins. from both sides
1 hr. 45 mins. = h
However, s > 2 hrs. 15 mins., so h must be more than 1 hr. and 45 mins.
h > 1 hr. 45 mins.
Is this what you were looking for?
Answer:
8-5 times x -9 times x ^ plus 1/5 times x cubed
Step-by-step explanation:
Answer:
each shirt cost $12
Step-by-step explanation:
5a^2 - 6a -4 - (<span>-7a^2 + 3a -9)
=</span>5a^2 - 6a -4 + 7a^2 - 3a + 9
=12a^2 - 9a + 5
answer
12a^2 - 9a + 5
Answer:
Step-by-step explanation:
