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3 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]3 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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17. ralph is 3 times as old as sarah. in 4 years ralph will only be twice as old as sara will be then. find ralph’s age now.

spin [16.1K]

Answer:

Sara is now 4, will be 8 in 4 years. Ralph is now 12, will be 16 in 4 years.

7 0

3 years ago

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid?

lana66690 [7]

Answer:

The effect of doubling all the dimensions of a triangular pyramid will have on the volume of the pyramid is to increase it by 8 times.

Step-by-step explanation:

i) volume of triangular pyramid = $\frac{1}{3}$ $\times$ Area $\times$ height

= $\frac{1}{3}$ $\times$ (Base of triangle $\times$ perpendicular height of triangle) $\times$ height

ii) if we double all the dimensions then the three variables((Base of triangle, perpendicular height of triangle, height of pyramid) will be doubled

and the volume of the new pyramid will be 8 times that of the original one.

3 0

2 years ago

Write 3 2/4 as a fraction greater than 1

Daniel [21]

14/4 is a fraction greater than 1.

7 0

3 years ago

Read 2 more answers

Homework please help its over due

xxMikexx [17]

Step-by-step explanation:

TRIANGLE 1

c = 2√5

= 2 × √5

= √4 × √5

= √20

a = 2

b = ?

b² = c² - a²

= √20² - 2²

= 20² - 4

= 400 - 4

= 396

b = √396

= √36 × √11

= 6 × √11

= 6 √11

TRIAGLE 2

a = 12

b = 6√11

= √396

c = ?

c² = a² + b²

= 12² + √396

= 144 + √396²

= 144 + 396

c = √540

= √36 × √15

= 6 × √15

= 6 √15

Sorry if i wrong. Im beginner in USA server

4 0

3 years ago

Simplify the rational expression by rationalizing the denominator √15/√6x

noname [10]

Answer:

√10/2x

Step-by-step explanation:

Multiply by √6 on the top and bottom to rationalize the denominator.

(√15×√6)/(√6x×√6) = √90/6x = (√9×√10)/6x = 3√10/6x = √10/2x

4 0

3 years ago