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padilas [110]
2 years ago
9

There are eight swans swimming on a pond and four of those swans are

Mathematics
2 answers:
Juli2301 [7.4K]2 years ago
5 0
Total number of swans= 8
Total no.of black swans= 4
Fraction of black swans among all swans= 4/8
If you simplify 4/8 you will get 1/2, in exam you have to always write the simplified version to get full marks
Hope it helped
Fiesta28 [93]2 years ago
4 0

Answer: A. (4/8)

Step-by-step explanation: If there is 4 black swans and 8 swans in total you could see it's 4 black swan out of 8 total swans. You could do

8/8 - 4/8 = 4/8 to find out the answer too.

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Solve <br><img src="https://tex.z-dn.net/?f=y%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20-%205" id="TexFormula1" title="y = {x}^{2} - 5
vesna_86 [32]

Add 5 to both sides

y + 5 = x^2

Take the square root of both sides

±√y + 5 = x

Switch sides

<u>x = ±√y + 5</u>

3 0
3 years ago
A bank account yields 7 percent interest, compounded annually. If you deposit $1,000 in the account, what will the account balan
lianna [129]
Hi there
The formula is
A=p (1+r)^t
A future value?
P present value 1000
R interest rate 0.07
T time 5 years
So
A=1,000×(1+0.07)^(5)
A=1,402.55

It's a

Hope it helps
7 0
4 years ago
Can anyone help me out? I’ll give Brainly! Thank you :)
Oliga [24]

Answer:

The rate of return is 14%

Step-by-step explanation:

The rate of return can be determined by,

RR = \frac{A_{f} - A_{i}  }{A_{i} } x 100%

where:

RR is the rate of return

A_f} is the final amount = $690 -  $6 = $684

A_{i} is the initial amount = $15 x 40 = $ 600

So that,

RR = \frac{684 - 600}{600} x 100%

     = 0.14 x 100%

     = 14%

Therefore, the rate of return is 14%.

7 0
3 years ago
Justin is saving money for a new gaming console. He currently has $200 in a saving account and each week $10 to his balance. In
Nikitich [7]

$500 - $200 = $300 dollars left.

$300 divided by $10 = 30 weeks.

8 0
3 years ago
Mr. Smith's salary is $35,873.His wife salary is $32,870.what is their combined income?
Dmitriy789 [7]
There combined in come would be <span>68,745 if you put them together i dont know if thats one of the awnsers but i think that should be right

</span>
8 0
3 years ago
Read 2 more answers
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