Well, 20% is equivalent to (1/5). So, you'd put 50 in the numerator and 5 in the denominator. (50/5) is equal to 10. Then you'd take that value and subtract it from your original value. [ 50 - 10 = 40 ]. 40 Students were at school that day.
Answer:
Step-by-step explanation:





Answer:
The sum of the arithmetic series is 2717.
Step-by-step explanation:
The sum of an arithmetic sequence is given by:

Where <em>k</em> is the number of terms, <em>a</em> is the initial term, and <em>x</em>_<em>k</em> is the last term.
There are 22 terms, the first term is 7, and the last term is 240. Hence, the sum is:

In conclusion, the sum of the arithmetic series is 2717.
15 minutes!
Since the ratio is 1 : 1, for every one ingredient it will take her one minute. 15 ingredients = 15 minutes.
Hope that helped!
:D®
P.S. I wonder what she's cooking.
Answer:
3
Step-by-step explanation: