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Reil [10]
3 years ago
6

3 4/7 minus 2 1/5 by rounding to the nearest half

Mathematics
1 answer:
mylen [45]3 years ago
6 0

Answer:

1 \frac{13}{35}

Step-by-step explanation:

3 \frac{4}{7} -  2 \frac{1}{5}

you can solve for the fractions first, but you have to give them a common denominator

\frac{20}{35}- \frac{7}{35}

= \frac{13}{35} which is in simplest form

then solve for the whole numbers

3-2=1

therefore, the answer is 1 \frac{13}{35}

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julsineya [31]
1/5 written as a decimal just divide 1 by 5 and you get: 0.2 as a decimal.
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4 years ago
The width of a rectangle is 8 cm less than its length. The perimeter of the rectangle is 52 cm.What is the width of the rectangl
astraxan [27]
Let X be width <span>of a rectangle, then
(x+8) - </span><span>length

(x+x+8)*2 = 52
x+x+8 = 52/2
2x+8 = 26
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4 years ago
I am in a game show.
wlad13 [49]
This is the well known Monty Hall problem.

You have more chances of winning by switching doors.

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Let HA,HB,HC denote the events "The host opens A" and so on

By Baye's formula, P(B)_{HC}=\frac{P(HC)_BP(B)}{P(HC)}=\frac{\frac{1}2\cdot\frac{1}3}{\frac{1}2}=\frac{1}3 whereas P(A)_{HC}=\frac{P(HC)_AP(A)}{P(HC)}=\frac{1\cdot\frac{1}3}{\frac{1}2}=\boxed{\frac{2}3} !!



7 0
4 years ago
Read 2 more answers
Can someone please help ms​
attashe74 [19]

........................................................................................... ........................................................................................... ...........................................................................................

6 0
3 years ago
A plane flies 910 miles with the wind in the same time it can go 660 miles against the wind. The speed of the plane is still air
lorasvet [3.4K]

Answer:

The speed of the wind is 48.56

Step-by-step explanation:

We can use the following formula to calculate the distance:

distance = speed x time

Let w represent the speed of the wind.

If the plane flies with the wind, the speed will be the speed of the plane + the speed of wind. Since it can fly 910 miles, and the speed of the plane is 305

910 = (305 + w) x time (1)

If the plane flies against the wind, the speed will be the speed of the plane - the speed of wind. Since it can fly 660 miles, and the speed of the plane is 305

660 = (305 - w) x time (2)

Since the time is equal for both equation in 1 and 2:

\frac{910}{305+w} = \frac{660}{305-w}

→ 910(305-w) = 660(305+w)

→ 277550 - 910 w = 201300 + 660w

→ 1570w = 76250

→ w = 48.56

6 0
3 years ago
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