Question

3. Find the value of kif x=2, y=4 is a solution of 2x+5y = k.
4. The mean of 5, 12, 20, 15, 34, P, 10 is P. find the value of P.
5. Find the mean of first '5' multiples of 6.​

Answer 1

Answer:

24, 16, 21

Step-by-step explanation:

3.Given, x=2, y=4

By Substitution, 4+20=k

Therefore k=24

4.(5+12+20+15+34+P+10)/7=P

That means, 96=P=7P

6P=96

P=16

5. First five multiples of 6 are: 6, 12, 18, 24, 30, 36

Sum of the first six multiples/6=mean

=>126/6=21