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Luda [366]
3 years ago
11

What percent of a dollar is a nickel and a penny? It is ______% of a dollar.

Mathematics
1 answer:
TiliK225 [7]3 years ago
7 0

Answer:

6 %

Step-by-step explana

100 pennies makes a dollar... you just add 5 for the nickel and 1 fo the penny and it makes 6

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Given that the diameter of Circle A is 6 cm , and the radius of Circle B is 18 cm , what can be concluded about the two circles?
ELEN [110]

Answer:

The radius of circle B is 6 times greater than the radius of circle A

The area of circle B is 36 times greater than the area of circle A

Step-by-step explanation:

we have

<em>Circle A</em>

D=6\ cm

The radius of circle A is

r=6/2=3\ cm -----> the radius is half the diameter

<em>Circle B</em>

r=18\ cm

Compare the radius of both circles

3\ cm< 18\ cm

18=6(3)

The radius of circle B is six times greater than the radius of circle A

Remember that , if two figures are similar, then the ratio of its areas is equal to the scale factor squared

All circles are similar

In this problem the scale factor is 6

so

6^{2}=36

therefore

The area of circle B is 36 times greater than the area of circle A

8 0
3 years ago
Consider the following hypothesis test. H0: μ = 15 Ha: μ ≠ 15 A sample of 50 provided a sample mean of 14.11. The population sta
bearhunter [10]

Answer: -2.10

Step-by-step explanation:

Given : H_0:\mu=15

H_a:\mu\neq15

Sample size : n= 50, since the sample size is greater than 30 , so we apply z-test.

Sample mean : \overline{x}=14.11

Standard deviation : \sigma= 3

The test statistic for population mean :-

z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

i.e. z=\dfrac{14.11-15}{\dfrac{3}{\sqrt{50}}}=-2.09775011752\approx-2.10

Hence, the value of the test statistic = -2.10

8 0
4 years ago
Solve the inequality for t. <br> t- 8 &lt; 25
saw5 [17]
Okay...

t-8<25
t<25 add 8 to 25
t<33

8 0
4 years ago
Read 2 more answers
A circus has 12 performers, of which 3 are dancers.
Soloha48 [4]

Answer:

1/4

Step-by-step explanation:

Divide 12 by 4 to get the chance to pick a dancer

3 0
3 years ago
Write 56 1/4% as a fraction is simplest form
bazaltina [42]

56.25% as a decimal is 0.5625

0.5626 is equal to 5625/10000, which can be simplified to 9/16

This is because the common factor of 5625 and 10000 is 625. We divide the numerator and denominator by 625 to achieve 9/16.

8 0
4 years ago
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