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DENIUS [597]
2 years ago
14

Find the sum. 48 + 45 + 42+...+(-81) + (-84)

Mathematics
2 answers:
tatuchka [14]2 years ago
7 0

Answer:

-30

Step-by-step explanation:

use a calculator

hope this helped

Agata [3.3K]2 years ago
4 0

Answer:

look below

Step-by-step explanation:

i dont know what that +... thing is

but when youre adding the negatives youre really just adding that number so this is just

48+45+42+81+84

45+42 is 87

now we have

48 + 87 + 81 + 84

87 + 81 is 168

48 + 84 is 132

now we have

168 + 132 and that is exactly 300

again dont know what the ... is so cant help you there

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6 0
3 years ago
I will give brainiest to whoever answers correctly !!
mars1129 [50]

Given:

Cost of fish dinner = $10.95

selling price of fish dinner = $13.95.

To find:

The percent markup.

Solution:

We know that,

\text{Percent Markup}=\dfrac{\text{Price - Cost}}{\text{Cost}}\times 100

Using this formula, we get

\text{Percent Markup}=\dfrac{13.95-10.95}{10.95}\times 100

\text{Percent Markup}=\dfrac{3}{10.95}\times 100

\text{Percent Markup}=\dfrac{300}{10.95}

\text{Percent Markup}=27.39726

Round to the one decimal place.

\text{Percent Markup}\approx 27.4

Therefore, the markup is 27.4%.

6 0
3 years ago
42% of jacksons halloween candy from last year was chocolate. what fraction of his candy's chocolate
vodomira [7]

Answer:

21/50

Step-by-step explanation:

Given that Jackson's sweets from last Halloween from last year was 42% chocolate, we can assume he had a total of 100 sweets.

Out of 100 sweets, 42 pieces are chocolate, so:

42/100

When simplifying this fraction into its simplest form, the most you can do is divide the numerator(top) and denominator(bottom) by 2.

Your result would be 21/50

Hope this helps!

4 0
3 years ago
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