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Elenna [48]
3 years ago
8

SOMEONE PLEASE ANSWER AND I WILL GIVE BRAINLIEST :))

Mathematics
2 answers:
seraphim [82]3 years ago
7 0
65.5% for sure . No thanks needed
UNO [17]3 years ago
6 0
Ok, so we know it costs $1.10 to make a pin, so the cost of making all 1000 pins must have been:
1.10 \times 1000 = 1100
We know that 35% of the pins, hence 350 pins, were given to charity (we assume this means donated for free), and so the company sold 650 pins.

60% of these we sold at $3 each;
0.60 \times 650 = 390
So 390 pins sold at $3 each comes to
390 \times 3 = 1170
So the company has already made $1170.

The other 40% of the 650 remaining pins (260 pins) were sold at $5 for 2. We assume from the question that they were only sold in pairs and were all sold, so we can essentially figure out that 130 pairs were sold at $5 each;
130 \times 5 = 650
So the company has sold the pins for $650 + $1170 = $1820

This means that the company has made
$1820 - $1100 = $720 as profit

So the percentage profit earned (profit/cost times 100%) would be
\frac{720}{1000}  \times 100 = 65.4545....
Which to one decimal place is 65.5% profit.

Hope this helped.



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Step-by-step explanation:

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3 years ago
You randomly survey students about year-round school. The results are shown in the graph.
Sergio [31]

Answer:

27% and 37%

Step-by-step explanation:

Percentage of students who oppose the year-round school = 68%

Percentage of students who support the year-round school = 32%

Margin of error = ± 5%

We have to set up the absolute valued equation to find the range(least and greatest) percentages of students who could be in favor of year-round school.

Since, the percentage of students who support the year-round school is 32% and the margin of error is 5%, this means, the difference between 32% and the least and greatest possible percentages is 5%. It can be either +5% or -5%

This thing can be expressed as absolute valued equation as:

| x - 32 | = 5

Here x represents the least and greatest percentages.

Expanding the equation, we can write:

x - 32 = -5                or                x - 32 = 5

x = -5 + 32                or               x = 5 + 32

x = 27%                                       x= 37%

This means the least percentage of students who be in favor is 27% and the greatest percentage of students is 37%.

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