Answer:
1 solution and that is that x = -1
Step-by-step explanation:
Answer:
omg thank you I needed this answer
Answer:
It would be 4 months because with extreme fitness 10x4=40 then 40+50=90 then for ultimate fitness 15x4=60 then 60+30=90 so I took 4 months for both memberships to be the same
Step-by-step explanation:
Look at the answer above
Answer:
Step-by-step explanation:
Given that the number of males in the classroom is three more than twice the number of females.
the total number of students is 57
Let x be the no of males then no of females = 
Also we have 3 more than twice no of females as

This equals x

No of males = 39, no of females = 18
Answer: Stratified Random Sampling
Step-by-step explanation: Got it right