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Artyom0805 [142]
2 years ago
9

A group of students held a fundraiser last year and raised $950 for charity. this year, they raised $1,045. what is the percent

change in the amount the group raised?
Mathematics
2 answers:
podryga [215]2 years ago
6 0
% change = (new value - old value)/old valu x 100 = (1,045 - 950)/950 x 100 = 95/950 x 100 = 0.1 x 100 = 10%
Murljashka [212]2 years ago
6 0

Answer: Hello there!

The students wanted to raise $950, which will be called the %100.

They raised $1,045, the quotient betwen this and the initual amount they wanted is:

$1,045/$950 = 1.1

this means that $1,045 = 1.1*$950 = $950 + 0.1*$950

Then, if $950 is the 100%, $1,045 is the 1.1*100% = 110%

the difference is 110% - 100% = 10%

This means that the percent change in the amount the group raised is 10%.

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fomenos
For roots of -2, 5, and 7.

x = -2, x = 5, and x = 7

x = -2                        x = 5                             x = 7           

(x + 2) = 0                 (x - 5) = 0                   (x - 7) = 0

The polynomial of least degree would be:
(x -2)(x - 5)(x - 7) = 0

(x -2)(x -5) = x(x - 5) - 2(x -5)
              
                 = x² - 5x - 2x + 10

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 (x² - 7x + 10)(x -7)

x(x² - 7x + 10) - 7(x² - 7x + 10)

x³ - 7x² + 10x - 7x² + 49x - 70

x³ - 7x² - 7x² + 10x + 49x - 70

x³ - 14x² + 59x - 70

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3 0
2 years ago
Abit is planning a birthday party for his granddad. He bought a cake for $18\$18$18dollar sign, 18. He also wants to buy some ba
Arturiano [62]

Answer:

$1.00

Step-by-step explanation:

Total Budget = $35

Cake Spent = $18

Remaining Money = 35 - 18 = $17

Since, each balloon is worth $4, to find how many balloons he will get with remaining money ($17), we divide the the remaining money by price of each balloon:

17/4 = 4.25

We can't have fractional balloons, so Abit can get 4 balloons, MAXIMUM.

4 balloons cost = $4 per balloon * 4 = $16

So, from $17 if he spends $16 for balloons, he will have left:

$17 - $16 = $1.00

3 0
2 years ago
If Jimmy increases a number by 10%, and then decreases this new value by 10%, what percent of the original number will the final
ludmilkaskok [199]
If he increases the number by 10%, he will have 110% of the number. 
Then he reduces it by 10% of the new number, which s 11%. 
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The answer is 99%.
Hope this helps!
8 0
2 years ago
It takes 32 hours for a motorboat moving downriver to get from pier A to pier B. The return journey takes 48 hours. How long doe
lina2011 [118]

Answer:

Time taken by the un powered raft to cover this distance is T = 192.12 hr

Step-by-step explanation:

Let speed of boat = u \frac{km}{hr}

Speed of current = v \frac{km}{hr}

Let distance between A & B = 100 km

Time taken in downstream = 32 hours

32 = \frac{100}{u +v}

u + v = \frac{100}{32}

u + v = 3.125 ------ (1)

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Because un powered raft travel with the speed of the current.

T = \frac{100}{0.5205}

T = 192.12 hr

Therefore the  time taken by the un powered raft to cover this distance is

T = 192.12 hr

3 0
2 years ago
Read 2 more answers
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Ivan
Let x = the number of marbles for Phil
Then 3x = the number of marbles for Peter
Together they have 3x+x=48 or 4x=48 and x=12
So Phil has x = 12 marbles and Peter has 3x, let x = 12, 3(12) = 36 marbles.
Peter has 24 more marbles than Phil.
3 0
2 years ago
Read 2 more answers
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