3 years ago

The speed of light is estimated at 186,000 miles per second rounded to the nearest thousand miles per second.

2 answers:

7 0

A. 185,190 rounded to the nearest thousand is 185,000
B. 185,990 rounded = 186,000
C. 186,789 rounded = 187,000
D. 186,899 rounded = 187,000

so ur answer is B

Elenna [48]3 years ago

4 0

A. 185,190 rounded to the nearest thousand is 185,000

B. 185,990 rounded = 186,000

C. 186,789 rounded = 187,000

D. 186,899 rounded = 187,000

so your answer is B

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3 years ago

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3 years ago

If 1 cm represents 30 km on a map and colorado is shown by a 20cm by 15 cm rectangle on the map, what is the approximate actual

zubka84 [21]

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assuming 1cm --- 30km causes that 2cm --- 60km, 3cm --- 90km, 4cm --- 120km etc. Notice that number of km's is 30 times greater than the number of cm's on a map

using this logic, you calculate both real dimensions of Colorado by multiplying 20*30 = 600 km and 15*30 = 450km

Then we use a formula of an area of a rectangle $A=a\cdot b$ assuming $a=600km, \ b=450km$ and get $A=600\cdot 450=270000km^2$ which is an actual area of Colorado