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Marysya12 [62]
3 years ago
12

Tim buys a torch and a battery. The torch costs 11 times as much as the battery. Tim pays with a £10 note and gets £4.84 change.

How much did the battery cost?
Mathematics
1 answer:
algol [13]3 years ago
6 0
The cost of the battery is £0.43
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The distance on the map between Yappy City and Quiet city is 23 cm. What is the actual distance between the cities? (5 cm : 2 mi
Sonja [21]
You can write the conversion factor as an equation.
.. 5 cm (map) = 2 miles
Now, you can multiply this equation by 23/5.
.. (23/5)*5 cm (map) = (23/5)*2 miles
.. 23 cm (map) = 9.2 miles

The actual distance is 9.2 miles.
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Find the surface area & volume for the prism shown?
patriot [66]
Are there any dimensions given? because we need to know the length and width before we start.
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The data set of the diameters of the metal cylinders manufactured an automatic machine has sample size of n=29, mean of x= 49.98
Lena [83]

Answer:

we say for  μ = 50.00 mm we be 95% confident that machine calibrated properly with ( 49.926757  ,  50.033243 )

Step-by-step explanation:

Given data

n=29

mean of x = 49.98 mm

S = 0.14 mm

μ = 50.00 mm

Cl = 95%

to find out

Can we be 95% confident that machine calibrated properly

solution

we know from t table

t at 95% and n -1 = 29-1 = 28 is  2.048

so now

Now for  95% CI for mean is

(x - 2.048 × S/√n  ,  x + 2.048 × S/√n )

(49.98 - 2.048 × 0.14/√29  ,  49.98 + 2.048 × 0.14/√29 )

( 49.926757  ,  50.033243 )

hence we say for  μ = 50.00 mm we be 95% confident that machine calibrated properly with ( 49.926757  ,  50.033243 )

8 0
3 years ago
Why has it been difficult to pass laws regarding transportation?
Rzqust [24]

Answer:

a-it would cause too much of a tax increase

6 0
2 years ago
While in France, Judy wants to sign up for a bike tour to see the countryside. She likes a tour that is 40 kilometers long, but
Sonja [21]

Answer:

24 miles

Step-by-step explanation:

In order to calculate Judy's estimation, we would simply have to multiply the actual distance in kilometers of the tour by the number of miles that Judy believes are in a single mile. This would give us Judy's estimation for how long the tour would be in miles.

40 km. * 0.6 miles = 24 miles

Finally, we can see that Judy's estimation would be that the tour is 24 miles long. Using Judy's believed conversion rate.

8 0
2 years ago
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