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3 years ago

Here is a tape diagram representing the ratio of red paint to yellow paint in a mixture of orange paint.

Mathematics

1 answer:

Vinvika [58]3 years ago

3 0

Answer:

2:3

Step-by-step explanation:

So there are 9 cups of red paint

There are 6 cups of yellow paint

Now we need yellow:red

6:9

Simplify it

2:3

So the ratio is 2:3 for yellow to red paint

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Jason eats 10 ounces of candy in 5 days. How many pounds does he eat per day?

Anna007 [38]

Answer:

He eats 2 oz of candy every day.

Step-by-step explanation:

10oz divided by 5d equals 2 oz per day.

3 0

3 years ago

Read 2 more answers

2. A record store is going out of business and sold any

liubo4ka [24]

Answer:

A) c + CD = 20

B) 6c + 12CD = 192

Multiplying equation A by -6 we get:

A) -6c -6CD = -120

B) 6c + 12 CD = 192

Adding the equations we get

0 + 6 CD = 72

There are 12 CD's and

c + 12 = 20

There are 8 cassettes

Step-by-step explanation:

7 0

2 years ago

Select the correct answer.

Varvara68 [4.7K]

Answer:

OB.

Step-by-step explanation:

you first find the common denominator of the two fractions. then u start dividing each denominator into the common denominator u chose and multiplying the answer with the numerator

8 0

3 years ago

The weights of 67 randomly selected axles were found to have a variance of 3.85. Construct the 80% confidence interval for the p

VLD [36.1K]

Answer:

$3.13$

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 67

Variance = 3.85

We have to find 80% confidence interval for the population variance of the weights.

Degree of freedom = 67 - 1 = 66

Level of significance = 0.2

Chi square critical value for lower tail =

$\chi^2_{1-\frac{\alpha}{2}}= 51.770$

Chi square critical value for upper tail =

$\chi^2_{\frac{\alpha}{2}}= 81.085$

80% confidence interval:

$\dfrac{(n-1)S^2}{\chi^2_{\frac{\alpha}{2}}} < \sigma^2 < \dfrac{(n-1)S^2}{\chi^2_{1-\frac{\alpha}{2}}}$

Putting values, we get,

$=\dfrac{(67-1)3.85}{81.085} < \sigma^2 < \dfrac{(67-1)3.85}{51.770}\\\\=3.13$

Thus, (3.13,4.91) is the required 80% confidence interval for the population variance of the weights.

8 0

3 years ago

Use the given information to write the standard equation of the circle

Strike441 [17]

Answer:

$(x-1)^{2} +(y-2)^2=9$

Step-by-step explanation:

8 0

3 years ago