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3 years ago

Whats .4 (repeating) divided by 3/8??

Mathematics

2 answers:

hichkok12 [17]3 years ago

6 0

.444444 divided by 3/8 = 0.01666666666

Grace [21]3 years ago

5 0

.4 repeating is 4/9
4/9 ÷ 3/8
4/9 × 8/3
32/27 or 1 5/27

Hope this helps :)

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Step-by-step explanation:

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At noon, ship A is 130 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is

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Answer:

answer = 12.87 km/h

Step-by-step explanation:

Given

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here x and y are the sailing at t = 4 : 00 pm for ship A and B respectively

so we get x = 4 ×25 =100 km/h

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$z^2 = (130-x)^2 + y^2......................(i)\\put x = 100 and y = 80 \\\\we | | get \\$

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$2z\frac{dz}{dt} =$ $-2(130-x)\frac{dx}{dt}$ $+2y\frac{dy}{dt}$

$\frac{dz}{dt} =\frac{1}{z}[(x -130)\frac{dx}{dt} +y\frac{dy}{dt}]$

$\frac{dz}{dt} = \frac{( -20\times25 + 80\times20)}{\sqrt{7300} }$

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