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amid [387]
2 years ago
10

David likes to enter bike races on weekends. He can bike 42 ½ miles in 2 ½ hours. How many miles can he ride in just one hour? g

uys i need the answer asap can yall help me
Mathematics
2 answers:
Rudiy272 years ago
4 0

Answer:

17 miles in 1 hour

Step-by-step explanation:

storchak [24]2 years ago
3 0
Answer is 17 miles in 1 hour :)
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3 years ago
In a random sample of 500 handwritten zip code digits, 464 were read correctly by an optical character recognition (OCR) system
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Answer:

z= 2.38

P = 0.008656

Step-by-step explanation:

Here n= 500 and p~= 464/500= 0.928 and q`= 1- 0.928 = 0.072

We formulate our null and alternate hypothesis as

H0 =  0.9 ;       H0 > 0.9

The degree of confidence = 90%

z₀.₀₅ = 1.645 for  α= 0.05

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z= 16/6.7082

z= 2.38

As the calculated value of z= 2.38  is greater than α =1.645 so we reject H0.

If H0 is true the P value is calculated as

P = 1- Ф( 2.38)

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7 0
3 years ago
24 students in Jamal's class are wearing tennis shoes. There are 30 students in his class. Jamal says that 70% of his class is w
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