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lys-0071 [83]
2 years ago
7

50 points!!! Will mark brainliest

Mathematics
2 answers:
wlad13 [49]2 years ago
6 0

Answer:

20

Step-by-step explanation:

7x4=28 5x4=20

Murrr4er [49]2 years ago
3 0

Answer:

x=20

Step-by-step explanation:

form a ratio

28:7

4:1

x:5

x=20

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there are 1024 players in a tennis tournament in each round half of the players are eliminated which function can be used to fin
jonny [76]

Answer: f(x) = 1,024(0.50)^x

Step-by-step explanation:

Hi, to answer this question we have to apply a decreasing rate formula:

f(x)= P (1 - r) ^x

Where:  

p = original number of players

r = decreasing rate (decimal form, since half of the players are eliminated the percent decrease is 50%)

x = rounds  

f(x) = number of players after x rounds

Replacing with the values given:

f(x) = 1,024(1-50/100)^x

f(x) = 1,024(1-0.5)^x

f(x) = 1,024(0.5)^x

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3 years ago
Which of the following are NOT congruent?
algol13

the adjacent angles in a parallelogram

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An element with mass 670 grams decays by 27.3% per minute. How much of the element is remaining after 9 minutes, to the nearest
ArbitrLikvidat [17]
There will be 38 grams remaining.

The equation would be of the form
y = a(1+r)ˣ, where a is the initial value, r is the rate as a decimal number, and x is the amount of time.  Using our values from the problem, we have:

y = 670(1-0.273)^9 = 670(0.727)^9 = 38
6 0
3 years ago
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A car is 160 inches lorrg.
Andreyy89
The truck is 171.2%. if you calculate the percentage of 160 and add them together, you will get 171.2
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Korey’s comic book store has been up and running for 4 years. Korey feels that his store has been successful and is considering
Inessa05 [86]
Year      Net Profit
1            <span>$14,250.00
2            $15,390.00
3            $16,621.20
4            $17,950.90</span>2

We need to get the increase of the net profit of the current year from the previous year.

Percentage increase = (Current year - Previous Year)/ Previous Year    * 100%

Year 2:  (15,390 - 14, 250) / 14,250   * 100% = 0.08 * 100% = 8%
Year 3: (16,621.20 - 15,390) / 15,390 * 100% = 0.08 * 100% = 8%
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Every year the net income increases by 8%. So, the net income in Year 5 will be:

17,950.90 x 1.08 = 19,386.97  Choice D.

8 0
3 years ago
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