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3 years ago

What is 1.265 rounded to the nearest tenth

Mathematics

2 answers:

stich3 [128]3 years ago

3 0

Answer:

the answer will be 1.27

Step-by-step explanation:

SIZIF [17.4K]3 years ago

3 0

Answer:

1.3

Step-by-step explanation:

1.265 that six is going to make that 2 into a 3

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Step-by-step explanation:

Multiply 2.75 by .075 then multiply 3.25 by .075 and add them together

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3 years ago

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Oduvanchick [21]

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Which sentence is correct?<br> A. -4 > 3<br> B. -4< -6<br> C. -4 > -7<br> D. -5 > -4

prisoha [69]

Answer:

C. -4 > -7

Step-by-step explanation:

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3 years ago

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A plane flew 720 mi with a steady 30 mi/h tailwind. The pilot then returned to the starting point, flying against that same wind

NNADVOKAT [17]

Answer:

Plane's speed is 150 miles/hour

Step-by-step explanation:

Let the plane's airspeed be x

Speed of wind is 30 miles/hour

When a plane flew with the wind , Speed = (x+30)

So, the speed plain with wind on going = (x+30)

Since we are given that on returning plane fly against the wind .

So,When a plane flew against the wind , Speed = (x-30)

So, the speed plain against wind on returning = (x-30)

Distance = 720 miles .

$Time = \frac{Distance}{Speed}$

So, time on going $=\frac{720}{(x+30)}$

Time on returning $=\frac{720}{(x-30)}$

Now we are given that the total time for the whole trip (going + returning) = 10 hours.

So, $\frac{720}{(x+30)}+\frac{720}{(x-30)}=10$

$\frac{720x-21600+720x+21600}{(x+30)(x-30)}=10$

$720x-21600+720x+21600=10(x+30)(x-30)$

$720x+720x=10(x+30)(x-30)$

$1440x=10(x^2 -[30]^2)$

$144x=x^2 -900$

$x^2-144x -900=0$

$x^2-150x+6x -900=0$

$x(x-150)+6(x -150)=0$

$(x-150)(x+6)=0$

$x= 150,x= -6$

So, the plane's speed is 150 miles/hour

4 0

3 years ago