Answer:
B. Methodology
Step-by-step explanation:
The methodology of anything is how it's done. In an observational study, methodology would describe how the study is done: how the data is collected and how decisions are made.
Answer: 2(x-5y)(2x+y) ?
Step-by-step ex5planation:
Answer:
28.89 percent
Step-by-step explanation:
45-32 is 13 and 13 is 28.89 percent of 45
Hope this helped!
Answer:30km/hr
Step-by-step explanation:
Total distance=294km
Speed=s
Distance=d
Time=t
First drive:
t=5
d=s x t
d=s x 5
d=5s
Second drive:
t=4
Speed is 6km/h greater than the first speed
The new speed= s+6
d=4(s+6)
Total distance=294
5s + 4(s + 6)=294
5s + 4s + 24=294
Collect like terms
5s + 4s=294 - 24
9s=270
Divide both sides by 9
9s/9=270/9
s=30
First speed=30km/hr
