a) (2/5) x 35 = 14 students received invitations
b) 35-14 = 21 students didn’t receive invitations
Let us take the second equation first
2a + 2b = 6
Dividing both sides by 2 we get
a + b = 3
a = 3 - b
Putting the value of a in the first equation we get
3a + 4b = 9
3(3 - b) + 4b = 9
9 - 3b + 4b = 9
b = 9 - 9
= 0
Now putting the value of b in the second equation we get
a + b = 3
a + 0 = 3
a = 3
So the value of the unknown variable a is 3 and the value of the unknown variable b is 0.
Answer:
The answer is -a-bc+43
Step-by-step explanation:
Pull terms out from under the radical, assuming positive real numbers
Forgive me if this is wrong. I haven't done stat in a year, but comment if you need clarification!
Answer:
336 Hours = 1,209,600 Seconds = 1209600 Seconds\
Step-by-step explanation:
This conversion of 336 hours to seconds has been calculated by multiplying 336 hours by 3,600 and the result is 1,209,600 seconds.
