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3 years ago

Calculate the percentage discount on an object whose price was reduced from 600000GH Cedis to 450000gh cedis

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

$Original \: price = 600000GH Cedis\\New \: price =450000gh cedis\\\\Difference \:between \:the \:two \:values(discount) =\\ 600000-450000=150000\\\\Discount \: percentage = \frac{Discount}{Original price} \times 100\\\\ = \frac{150000}{600000} \times 100\\\\= \frac{1}{4} \times 100\\\\= \frac{100}{4} \\\\= 25 \%$

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A girl is 18 years old and her brother is a third of her age. When the girl is 36 what would be the age of the brother?

ale4655 [162]

First we need to calculate how many years her brother has when she is 18. As text says he is:
18/3 = 6 years old

Now when she gains another 18 years (36-18=18) he will also gain those 18 years

When she is 36 he will have 6+18=24 years old

Answer is 24.

8 0

4 years ago

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The leopard population in an African wildlife area is currently 17. Due to a new conservation effort, conservationists hope the

kykrilka [37]

Answer:

$a{_n} = 17 + (n - 1)4$ for n = 1, 2, . . . , 20.

Step-by-step explanation:

This is an arithmetic sequence, because the population is said to increase by 4 animals yearly. The formula for the nth term in an arithmetic sequence is given by:

$a{_n} = a{_1} + (n - 1)d$ where $a_n$ is the nth term, [/tex]a_1[/tex] is the first term, n = 1, 2, . . . and d is the common difference.

Since they are currently 17, this implies that the first number in the population sequence will be 17. In order words, the first term is 17.

Since they increase by 4 yearly, then the common difference is 4.

Since it's for 20years, the n = 1, 2, . . ., 20. The explicit formula is therefore:

$a{_n} = 17 + (n - 1)4$ for n = 1, 2, . . . , 20.

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3 years ago

Please help!!!! I’m unsure of the answers

igomit [66]

Answer:

table:

.1, .25, .35, .2, .1

p(x=4) = .1

p(x<2) = .35

p(3≤x≤4)= .55

1.95, 1.12

Step-by-step explanation:

this is kind of hard to read, but i think i've got it

mean:

0*.1+1*.25+2*.35+3*.2+4*.1= 1.95

The second moment:

0²*.1+1²*.25+2²*.35+3²*.2+4²*.1= 5.05

the variance is the second moment minus the first moment squared (first moment is the mean) and then the standard deviation is the square root of the mean

5.05-1.95²= 1.2475 √1.2475= 1.1169 or 1.12

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3 years ago

During a game of roulette, a wheel is spun and a ball drops randomly into one of the wheel's numbered compartments. then the pro

scoray [572]

The two events are independent of each other.

According to the question during a game of roulette, a wheel is spun and a ball drops randomly into one of the wheel's numbered compartments. The ball can drop in any one of the wheel's numbered compartments , there is no restriction on it.

Now, the process is repeated with another random spin. when the process is repeated the ball can drop in any one of the wheel's numbered compartments , there is no restriction on it. As the first spin does not affect the second spin, we can conclude that these two events are completely independent of each other.

To know more about independent events refer to the link:

brainly.com/question/1374659

#SPJ4

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2 years ago

If twice a number, added to 3 is divided by the number plus 5, the result is three halves. Find the number.

Lynna [10]

Answer:2

Step-by-step explanation:

(2x+5)/3 = 3/2

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Divide both sides by :

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3 years ago

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