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8090 [49]
3 years ago
15

Ariana's grandfather made a scaled down model of a knitting needle to be placed inside a dollhouse. Arianna measured the model b

elow. If every 0.5 inch of the scaled down model equates to 3.5 inches of the actual needle, what is the length of the actual needle?
10.5
15
12
9.5

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0
They answer is 10.5 I believe
Andrew [12]3 years ago
3 0

Answer:

10.5

Step-by-step explanation:

1.5 inches

.5 and 1.5 =3

3x3.5=10.5

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The manufacturer of Pepsi claims that its 2-liter bottles contain, on average, no more than 250 calories. A sample of 20 2-liter
Stels [109]

Answer:

Yes, Sample information does indicate that a 2-liter bottle of Pepsi contains more than 250 calories  

Step-by-step explanation:  

Null Hypothesis [H0] : u < 250  

Alternate Hypothesis [H1] : u > 250 {One Tail}  

t = (x' - u) / [ sd / √n ]  

= (255 - 250) / (5.6 / √20)  

5 / (5.6 /√20)  

= 3.99  

As t ie 3.99 > t value 1.65 ie for one tail 95% confidence level. So, we reject the null hypothesis & conclude that it contains more than 250 calories.  

4 0
3 years ago
A baseball player gets 16 hits in 40 at bats. What percent of his at bats did not result
Katarina [22]

Answer:

40 percent

Step-by-step explanation:

Now percentage formula

Whatever

- - - - - - - - - - x 100

Total whatever

In this case your whatever is the hits. according to the question, if i said he had 40 hits in 40, that's a 100percent. So... Your whatever is 16, total whatever is 40

16

- - - - - - x 100

40

= 40 percent

6 0
2 years ago
carla can type 265 characters a minute on her keyboard. at that rate, how many characters can she type in 15 minutes?
gavmur [86]
Therefore multiply 265 by 15.
6 0
3 years ago
SOMEONE HELP ME WITH THIS!! PLEQSE I BEG PLEASE
Marta_Voda [28]

Step-by-step explanation:

1099cm might be lol I am poor in math

7 0
2 years ago
1+1 abcdefghijklmnopqrstuvwxyandz
skad [1K]

Answer:2


Step-by-step explanation: two 1 equal one 2


3 0
3 years ago
Read 2 more answers
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