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3 years ago

What is the answer to this equation 3/5+1/6

Mathematics

1 answer:

lbvjy [14]3 years ago

7 0

Answer:

3/5 + 1/6 = 23/30

Step-by-step explanation:

I'm not sure if you can simplify but hope this helps. :)

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The diagram represents an enlargement of a rectangle by a scale factor of 4,

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Answer:D 16inches by 8 inches

Step-by-step explanation:

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3 years ago

N students joined the radio control club. Some had boats, some had airplanes, and some had cars. They divided into 3 equal group

ludmilkaskok [199]

Answer:

36 people joined the radio control club.

Step-by-step explanation:

15-3= 12

12*3=36

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3 years ago

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3 years ago

Let θ

konstantin123 [22]

Answer:

θ is decreasing at the rate of $\frac{21}{16}$ units/sec

or $\frac{d}{dt}$ (θ) = $\frac{-21}{16}$

Step-by-step explanation:

Given :

Length of side opposite to angle θ is y

Length of side adjacent to angle θ is x

θ is part of a right angle triangle

At this instant,

x = 8 , $\frac{dx}{dt}$ = 7

( $\frac{dx}{dt}$ denotes the rate of change of x with respect to time)

y = 8 , $\frac{dy}{dt}$ = -14

( The negative sign denotes the decreasing rate of change )

Here because it is a right angle triangle,

tanθ = $\frac{y}{x}$ -------------------------------------------------------------------1

At this instant,

tanθ = $\frac{8}{8}$ = 1

Therefore θ = π/4

We differentiate equation (1) with respect to time in order to obtain the rate of change of θ or $\frac{d}{dt}$ (θ)

$\frac{d}{dt}$ (tanθ) = $\frac{d}{dt}$ (y/x)

( Applying chain rule of differentiation for R.H.S as y*1/x)

$sec^{2}$ θ $\frac{d}{dt}$ (θ) = $\frac{1}{x}$ $\frac{dy}{dt}$ - $\frac{y}{x*x}$ $\frac{dx}{dt}$ -----------------------2

Substituting the values of x , y , $\frac{dx}{dt}$ , $\frac{dy}{dt}$ , θ at that instant in equation (2)

2 $\frac{d}{dt}$ (θ) = $\frac{1}{8}$ *(-14)- $\frac{8}{8*8}$ *7

$\frac{d}{dt}$ (θ) = $\frac{-21}{16}$

Therefore θ is decreasing at the rate of $\frac{21}{16}$ units/sec

or $\frac{d}{dt}$ (θ) = $\frac{-21}{16}$

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3 years ago

The Khan family ate at Sunbird Seafood last Friday and their bill was $70. They left the server a 15% tip. The tax rate was 5%.

Evgesh-ka [11]

$5 because %15 of $70 is 10 and %5 of $10 is 5

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2 years ago