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3 years ago

10(4 - 3i ) = 1) 40-3i 2) 40-30i 3) 40+30i

Mathematics

2 answers:

dusya [7]3 years ago

4 0

10(4-3i)
=10*4-10*3i
=40-30i

Open the bracket by multiplying each term by 10

love history [14]3 years ago

3 0

2 because 10×4 is 40 and -3i×10 is -30i making it 40-30i

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$\frac{x+y}{x'+y'}=\frac{464646}{555}$

Now we replace the values of x and y' from equation (1) and equation (2)

$\frac{(x+\frac{4x}{3})}{(\frac{3y'}{4}+y')}=\frac{464646}{555}$

$\frac{\frac{7x}{3}}{\frac{7y'}{4}}=\frac{464646}{555}$

$\frac{4}{3}\times \frac{x}{y'}=\frac{464646}{555}$

$\frac{x}{y'}=\frac{3}{4}\times \frac{464646}{555}$

$\frac{x}{y'}=\frac{232323}{370}$

$\frac{y'}{x}=\frac{370}{232323}$

$\frac{y'}{x}=\frac{10}{6279}$

Therefore, ratio of blue fish in the small tank to the red fish in large tank is 10 : 6279

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