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galina1969 [7]
3 years ago
13

Velvet fabric costs $11.49 a yard. Yvette buys 9.3 yards. Yvette's estimated cost of the velvet is

Mathematics
1 answer:
Mars2501 [29]3 years ago
7 0

Answer:

Yvette's estimated cost of the velvet is $20. $99

Step-by-step explanation:

Hope this helps!

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Solve the equation. 27x - 6 = 9x - 1
Evgesh-ka [11]
27x-6=9x-1
27x-9x =-1+6
18x = 5
x = 5/18
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3 years ago
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Simplify:<br> (x+3)(x-3)-(1-9)
xxMikexx [17]

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67

Step-by-step explanation:

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There are 15 pieces of fruit in a bowl and 6 of them are apples? What percentage are apples
boyakko [2]

Answer:

40%

Step-by-step explanation:

You can first reduce this fraction by dividing both the numerator and denominator by the Greatest Common Factor of 6 and 15 using

GCF(6,15) = 3

6÷315÷3=25

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25

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2÷5

Then using

Long Division for 2 divided by 5

gives us

0.4

Converting our number to a percentage:

0.4×100

=40%

5 0
3 years ago
If $15,000 was invested in the account and it earned 10% compounded monthly, how much would be in the account after 20 years?
bulgar [2K]
The awnser is $30.000
8 0
3 years ago
PLEASE HELP!
Aleks04 [339]

Answer:

Option c:

0.25 \pm 1.645\sqrt{\frac{0.25*(1-0.25)}{90}}

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

For this problem, we have that:

You have access to first year enrolment records and you decide to randomly sample 119 of those records. You find that 89 of those sampled went on to complete their degree. This means that n = 119, \pi = \frac{89}{119} = 0.7478.

90% confidence level

So \alpha = 0.1, z is the value of Z that has a p-value of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

Sample of 90 people with a sample proportion of 0.25

This means that n = 90, p = 0.25.

Confidence interval:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

0.25 \pm 1.645\sqrt{\frac{0.25*(1-0.25)}{90}}

Which is option c.

6 0
3 years ago
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