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3 years ago

Kathy has 30 coins, consisting of dimes and quarters that total $5.10. How many coins of each type does she have?

Mathematics

1 answer:

Aliun [14]3 years ago

4 0

The answer is 92 because that is what it is

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Are the ratios 3:6 and 1:9 equivalent?

Katena32 [7]

Answer:

no they are not equivalent

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

|-19+9|/3-|14-22|/9 give me an answer

MArishka [77]

Answer:22/

= 2 4/

≅ 2.4444444

Step-by-step explanation:

Add: -19 + 9 = -10

Absolute value: abs(the result of step No. 1) = abs(-10) = 10

Divide: the result of step No. 2 / 3 = 10 / 3 = 3.3333333333333 = 10/

Subtract: 14 - 22 = -8

Absolute value: abs(the result of step No. 4) = abs(-8) = 8

Divide: the result of step No. 5 / 9 = 8 / 9 = 0.88888888888889 = 8/

Subtract: the result of step No. 3 - the result of step No. 6 = 10/

- 8/

= 10 · 3/

3 · 3

- 8/

= 30/

- 8/

= 30 - 8/

= 22/

6 0

3 years ago

in a small town 68% of the people own television 78% own radio and 12% neither own television nor radio question 1 represent the

Oksana_A [137]

Answer:

The answer is attached as an image.

Step-by-step explanation:

- If we assume that the space is 100% of the population then:

88% have something and 12% have nothing.

So within the 88% there are 10% who have TV, 20% who have Radio and 58% who have both TV and Radio.

8 0

4 years ago

In a study of the accuracy of fast food drive-through orders, one restaurant had 34 orders that were not accurate among 371 ord

postnew [5]

Answer:

The claim that he rate of inaccurate orders is equal to 10% is supported by statistical evidnece at 5% level

Step-by-step explanation:

Given that in a study of the accuracy of fast food drive-through orders, one restaurant had 34 orders that were not accurate among 371 orders observed.

Sample proportion $p=0.092\\q=1-p = 0.908\\n = 371$

$H_0: p =0.10\\H_a: p \neq 0.10$

(Two tailed test at 5% significance level)

p difference = $0.092-0.100\\=-0.0084$

Std error if H0 is true = $\sqrt{\frac{0.1(0.9)}{371} } \\=0.016$

Test statistic Z = p diff/std error

=0.539

p value = 0.5899

Since p > 0.05 accept null hypothesis

The claim that he rate of inaccurate orders is equal to 10% is supported by statistical evidnece at 5% level

8 0

4 years ago

A) Factorise 2x² - 9x - 5 (x-5)(2x+1) (2) b) Hence, simplify fully 2x^2- 9x - 5 3x – 15x (2)

Lyrx [107]

Answer:

Step-by-step explanation:

b).

2x² - 9x - 5 = ( x - 5 )( 2x + 1 )

3x² - 15x = 3x ( x - 5 )

$\frac{(x-5)(2x+1)}{3x(x-5)}$ = $\frac{2x+1}{3x}$

8 0

3 years ago