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2 years ago

1. Some roads in Poland have a speed limit of 140 km/h. How fast is this in miles per minute?

2 answers:

8 0

I only know number one here you goSolution
Conversion for Km to Miles
1km = 0.621 miles

Conversion Hours to minutes
1 hr = 60 mins

solve
140 (0.621 miles / 60 mins )
= 140 (0.01035 miles/min)
= 1.449 miles/min

Evgen [1.6K]2 years ago

4 0

1. 140km/1hour | 140(0.621mi/60min) = 0.01035 miles/min

2. 320,000Riels/1month divided by $4,000/1month = $80/month times 12 months/1year =$960/1 year

3. 180,000euros/1year times $1.36/1year = $244,800/1year divided 365days/1year = about $670.68/1 day

4. 3oz/1day times 7days/1week = 21oz/1week divided by 16oz/1week = 1.3125lbs/1week

6. 120km/1hour times 1000m/60minutes = 120,000m/60minutes divided each side by 60 = 2,000m/1minute times 3.28084feet/60seconds = 6561.68/60seconds divided by 60/60 = about 109.36 feet/1 second

7. 500inches/1year times 2.54cm/1year = 1270/1year divided by 365days/1year = about 3.48 cm/1 day

Sorry for being a year late.....

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5 hours

Step-by-step explanation:

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Hence, we get the below solutiom:

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3 years ago

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1 year ago

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erik [133]

Answer:

The perimeter is 8 cm.

Yes, the perimeter of a square is directly proportional to its side length.

Step-by-step explanation:

Given:

The side length of the square is, $a=2\ cm$

The perimeter of a square is the sum of all of its side lengths. The perimeter of a square of side length 'a' is given as:

$P=a+a+a+a=4a$

Plug in $a=2\ cm$ and find perimeter, 'P'. This gives,

$P=4\times 2=8\ cm$

Therefore, the perimeter is 8 cm.

Now, two quantities are directly proportional only if their ratio is a constant.

Let us find the ratio of 'P' and 'a'.

We have, $P=4a$

Dividing both sides by 'a', we get:

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2 years ago

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Answer:

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Step-by-step explanation:

Pythagorean theory

A^2 + B^2 = C^2

A = 4.7

B = 5.5

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22.09 + 30.25 = C^2

√52.34 = √C^2

7.235 cm ≈ C

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1 year ago

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