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2 years ago

I need help!!!! Evaluate 4/7 + 8/3 in fraction form

Mathematics

1 answer:

Reptile [31]2 years ago

8 0

Answer:

3 5/21.
68/21

Step-by-step explanation:

Given equation:

4/7 + 8/3

Solve:

4/7 + 8/3
= 12/21 + 56/21
= $\frac{12 + 56}{21 + 0}$
= 3 5/21.
= 68/21.

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Wade picked 4 pints of blackberries. His friend, Matt, picked 6 pints. How

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Together they picked 10 pints of blackberries.

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4 years ago

Read 2 more answers

The sum of all the positive terms in the geometric sequence 54, - 36, 24, - 16, ... is

Annette [7]

Answer:

B. 97.2

Step-by-step explanation:

The sequence of positive terms is ...

54, 24, 10 2/3, 4 20/27, ...

This sequence has first term 54 and common ratio 24/54 = 4/9. The sum of the infinite series is ...

S = a1/(1 -r) = 54/(1 -4/9) = 54(9/5)

S = 97.2

The sum of the positive terms in the infinite series is 97.2.

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2 years ago

Which equation would you want to represent your bank account? y=7x-4 7y+2x=6

Artyom0805 [142]

Answer:

y=7x-4

Step-by-step explanation:

when you put the other equation into y=mx+b form, it has a negative slope

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3 years ago

The cost of a week long vacation in a city has a mean of 1000 and a variance of 1200. The city imposes a tax which will raise al

matrenka [14]

Answer:

The coefficient of variation after the tax is imposed is 0.033

Step-by-step explanation:

Given

$\mu =1000$ --- mean

$\sigma^2 = 1200$ --- variance

$tax = 10\%$

Required

The coefficient of variation

The coefficient of variation is calculated using:

$CV = \frac{\sqrt{\sigma^2}}{\mu}$

After the tax, the new mean is:

$\mu_{new} = \mu * (1 + tax)$

$\mu_{new} = 1000 * (1 + 10\%)$

$\mu_{new} = 1100$

And the new variance is:

$\sigma^2_{new} = \sigma^2 * (1 + tax)$

$\sigma^2_{new} = 1200 * (1 + 10\%)$

$\sigma^2_{new} = 1320$

So, we have:

$CV = \frac{\sqrt{\sigma^2}}{\mu}$

$CV = \frac{\sqrt{1320}}{1100}$

$CV = \frac{36.33}{1100}$

$CV = 0.033$

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3 years ago

Lisa typed a 165-word paragraph in three minutes. Use the ratio table to

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Answer:

1 minute

Step-by-step explanation:

We can see that Lisa types 165 words in 3 mins.

So she types 55 words in 1 minute.

How did I work that out?

Well, all you really do is $\frac {165}{3}$ which is equal to $\frac{55}{1}$ if you divide top and bottom by 3. Anything divided by 1 is itself.

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2 years ago