x= morning
y = afternoon
x + y = 10
x=10-y
5x + 6y =57
5(10-y) +6y =57
50-5y +6y =57
y=7
x=10-7 =3
check 3*5 = 15, 7*6 = 42, 42 + 15 = 57
3 morning practices
Answer:
just set the 2 equations equal to each other. answer is 7, 13/3
Step-by-step explanation:
Answer:
213 or 213.68 or 214
Step-by-step explanation:
5342 divided by 25 it is 213.68 rounded it would be 214 but its only asking for the full boxes so it may be 213
Solution:
we are given that
In a class, every student knows French or German (or both).
15 students know French, and 17 students know German.
Suppose there are x student who knows both French and German.
Then Total number of student in the class will be 
But to guess the largest possible number of student in the class we can assume x=0
Hence the largest Possible number of Student in the class=32