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nadya68 [22]
3 years ago
6

last year, sales at a book store increased from 5,000 to 10,000. This year, sales decreased to 5,000 from 10,000. what percentag

e did sales increase year? what percentage sales decrease this year?
Mathematics
1 answer:
Vesnalui [34]3 years ago
5 0
Increases and decreases are calculated by the change, divided by the old value.

For increase from 5000 to 10000, change is 5000, old value is 5000, so the increase is 5000/5000=100%.

For decrease from 10000 to 5000, change is -5000, old value is 10000, so the decrease is -5000/10000=-50%, but cite as 50% decrease, or increase of -50%.

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sammy [17]

Answer:

7 \frac{2}{3}=\frac{7*3+2}{3}=\frac{23}{3}

7 \: \frac{1}{2}=\frac{7*2+1}{2}=\frac{15}{2}

5842 \div 23=254

8 0
3 years ago
I need help real quick please!
iogann1982 [59]

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6 0
3 years ago
the national flag of scotland has a white diagonal on a blue backround Tracy is sewing a scottish flag she knows that the length
dybincka [34]

Answer:

12 feet

Step-by-step explanation:

By Pythagoras theorem, a²+b²=c², where c represents the diagonal and a and b represents the other sides of a right angled triangle

As a flag is a rectangle, the two triangles cut would be  right angled triangles

Therefore, a²+9²=15²

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7 0
3 years ago
The formula for the nth term of an arithmetic sequence can be found using the formula Which of the following is equivalent to th
djyliett [7]
The formula for the nth term is

a1 + (n-1)d     where a1 = first term and d = common difference
6 0
3 years ago
Read 2 more answers
Find the measures of x and y
Blizzard [7]

Answer:

x = 159; y = 140

Step-by-step explanation:

a = 40

a + y = 180

y = 180 - 40

y = 140

b = 61

b = (180 - x) + a

61 = 180 - x + 40

x = 159

3 0
2 years ago
Read 2 more answers
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