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2 years ago

What is 4.2 divided by 0.14 and how do u divide it correctly?

Mathematics

1 answer:

Rudiy272 years ago

3 0

Answer:

Step-by-step explanation:

So, im doing it in fractions

First we have to convert:

4.2= 4 2/10= 4 1/5

0.14=14/100

Then make fractions( if needed)

21/5÷14/100

21/5x100/24=2100/70=210/7=30

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An angle measures 12 degrees less than three times it's supplement. Find the measure of the angle.

Aleonysh [2.5K]

supplementary angles = 180 degrees

so x = angle 1

y = angle 2

y = 3x-12

x + 3x-12 =180

4x-12 = 180

4x = 192

x = 192/4 = 48

y = 3(48) -12 = 144-12 = 132

132 +48 = 180

the angle is 132

4 0

4 years ago

Find the area for this pls

Anit [1.1K]

Answer:

3,36 in^2

Step-by-step explanation:

The geometric shape shown in image is called a trapezoid

to calculate the area of a trapezoid we use the following formula:

1/2*(a+b)*h (a and b are bases, h: height)

bases are 1.3 and 3.5 and height is 1.4

1/2(1.3 + 3.5)*(1.4) = 3,36 the area is stated in square units so the answer is

3,36 in^2

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2 years ago

3,152,308,009 I'm word form

Katarina [22]

Three-billion one-hundred-fifty-two-million three-hundred-eight-thousand nine

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4 years ago

Find the volume. * 5) radius = 13 yd; height = 8 yd Volume =

Dafna1 [17]

Answer:

assuming it is a circular cylinder it would be A

Step-by-step explanation:

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3 years ago

A certain ferry moves up and down a river between Town A and B. It takes the ferry two hours to travel to Town A and only an hou

Y_Kistochka [10]

Answer:

The distance between two cities is 60 miles.

Step-by-step explanation:

Time taken to travel from B to A = 2 hours

Time taken to travel from A to B = 1.5 hours

Current speed = 5 mph

Let the speed of ferry in still water = u mph

When the ferry moves with the current, it will taken lesser time (i.e. A to B) and when it moves against the current it will take more time (i.e. B to A).

Let the distance between the two cities A and B = D miles

While moving with the current, speed = $(u+5)\ mph$

While moving against the current, speed = $(u-5)\ mph$

Formula for Distance = Speed $\times$ Time

Distance traveled in each case is same i.e. D.

So,

$D = (u+5) \times 1.5 = (u-5) \times 2\\\Rightarrow 1.5u+7.5=2u-10\\\Rightarrow 0.5u =17.5\\\Rightarrow u = \dfrac{175}{5}\\\Rightarrow u = 35 \ mph$

Now,

$D = (u+5) \times 1.5\\\Rightarrow D =(35+5) \times 1.5\\\Rightarrow D =(40) \times 1.5\\\Rightarrow \bold{D =60\ miles}$

So, the distance between two cities is 60 miles.

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3 years ago