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chubhunter [2.5K]
3 years ago
10

A company sell earbuds for $17 each. At the end of the week,they have sold $731 worth of earbuds.how many earbuds did they sell?

Write and solve an equation to find the answer
Mathematics
1 answer:
Paha777 [63]3 years ago
3 0

Answer:

43 earbuds

Step-by-step explanation:

Let x be the number of earbuds sold over the week

This implies that

1 earbud:$17

x earbud:$731

Writing an equation, we get

\frac{1}{17} =  \frac{x}{731}

cross multiplying, we obtain

17x=731

Dividing through by 17,we get

x=43

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Answer:

The cost per ticket is<u> constant</u>.

Step-by-step explanation:

Given:

It costs $20 for 4 play tickets and $35 for 7 play tickets.

Now, to get whether cost per ticket is constant or not.

So, if the cost per ticket is constant that means the cost of ticket for a play or more is fixed, non-varying and it does not change.

Now, we check it:

4 play tickets costs  = $20.

1 play tickets costs  = $20 ÷ 4 = $5.

So, 7 play tickets costs = $5 × 7 = $35.

Thus, the cost of ticket for play is not changing and it is constant.

So the cost per ticket is constant.

Therefore, the cost per ticket is constant.

4 0
3 years ago
When the population mean and standard deviation are known, what distribution is used for the analysis of the sample?.
Kitty [74]

When the population mean and standard deviation are known, you use the standard normal distribution

<h3>How to determine the distribution?</h3>

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Of all these distribution, only the standard normal distribution can be used when the population mean and standard deviation are known,

Note that it is also referred to as the z-distribution

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7 0
2 years ago
1. Evaluate 3y - 4 for y =5
irina1246 [14]

Answer:

1. Evaluate 3y - 4 for y =5

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2. 65 + x = 99 x = ?

65+x=99

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4. Which value satisfies the equation? 9x + 3 = 30

The right value for x would be:

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Step-by-step explanation:

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ArbitrLikvidat [17]
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Step-by-step explanation:

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