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zmey [24]
3 years ago
9

Help... please.I don't understand TT​

Mathematics
1 answer:
pickupchik [31]3 years ago
4 0

Answer:

13. The more passengers, the more Subway cars are needed; 15. There's more weight with the more packages?

Step-by-step explanation:

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Toa has 4 dimes a 12 nickels.Gail has 2 dimes and 3 nickels. What would be the ratio of dimes to nickels if they put these toget
Free_Kalibri [48]

Answer:

2 : 5

Step-by-step explanation:

Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s).

We are to determine the ratio of dimes to nickels

total sum of nickels = 3 + 12 = 15

total sum of dimes = 4 + 2 = 6

6 : 15

three can divide each of the numbers

2 : 5

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2 years ago
Karina needs a total score of at least 627 on three games of bowling to break the league record. Suppose she bowls 222 on her fi
irga5000 [103]
X+y+z≥627
x=222
y=194

222+194+z≥627
if we solved for z then
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3 0
2 years ago
What are the roots of this quadratic equation?
pickupchik [31]

Answer:

2

Step-by-step explanation:

im the best in the world

5 0
1 year ago
Which formula would allow you to calculate the area of a circle
mezya [45]

Answer:

rpi^2 or pir^2

Step-by-step explanation:

radius times pi to the second

5 0
3 years ago
Read 2 more answers
A newspaper article states that 90% of drivers in Iowa wear their seatbelt. Suppose we are interested in estimating the proporti
konstantin123 [22]

Answer:

The sample size is  n  = 3457

Step-by-step explanation:

From the we are told that

  The population proportion is  p =  0.90

  The margin of error is  E =  0.01  

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally the sample size is mathematically represented as

       n  =[  \frac{ Z_{\frac{\alpha }{2} }  }{E} ]^2 * p(1-p)

=>  n  =[  \frac{ 1.96  }{0.01} ]^2 * 0.90(1-0.90)

=>   n  = 3457

8 0
3 years ago
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