Thanks, you too, you are so nice and sweet
Answer: - n/35+n/45=2.5 or just 49.22
Step-by-step explanation:
use the formulas t total=t1+t2 and V=n/t
n=distance, V=speed, and t=time
35=n/t1, and t1=n/35
her train ride follows the same path at 45mph
45=n/t2, and t2=n/45, so then you get - n/35+n/45=2.5
Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great rest of Black History Month! :-)
- Cutiepatutie ☺❀❤
Answer:
D. Only one cleaning product was asked about in the survey.
Any given company can use more than one cleaning product or even use a combination of different cleaning products. The question was not specific enough, since it should have probably asked which cleaning products are used and which ones are used more frequently.
Step-by-step explanation:
the other options are wrong because:
- A. Only 50 cleaning services were surveyed. ⇒ This actually would increase the validity of the claim because it satisfies the the condition for a valid confidence interval [np and n(1 - p) are larger than 10]-
- B. Cleaning services were selected at random. ⇒ This actually would increase the validity of the claim.
- C. A well-known company conducted the survey. ⇒ This actually would increase the validity of the claim.
Answer:
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Step-by-step explanation:
