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Sedbober [7]
2 years ago
14

How many times longer does it take light from the Sun to reach Neptune than Mercury? Express this number in standard notation. E

xplain your reasoning.
Mathematics
1 answer:
stealth61 [152]2 years ago
5 0

9514 1404 393

Answer:

  77.6

Step-by-step explanation:

The ratio of light times will be the ratio of distances:

  (light time to Neptune) / (light time to Mercury)

     = (Neptune distance)/(Mercury distance)

     = (27.93×10^8 mi)/(0.3598×10^8 mi) = 27.93/0.3598

     ≈ 77.6

It takes about 77.6 times as long for light to reach Neptune as it does to reach Mercury.

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a farmer is buying fencing to surround a square field of area 3600m^2. What length of fencing does he need to buy?
kirill115 [55]

Answer:

240 m

Step-by-step explanation:

The area of a square field is 3600 m².

We need to find the length of fencing he needs to buy. It means we need to find the perimeter of the field.

The area of a square field is given by :

A = side²

So,

s=\sqrt{3600} \ m\\\\s=60\ m

Length of fencing = perimeter

= 4(s)

= 4(60)

= 240 m

So, he would need to buy 240 m of fencing.

8 0
3 years ago
Every minute, 2.2gallons of water flows from a shower. A family of 5 people showers for an average of 9 minutes per person every
satela [25.4K]

Answer:

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Step-by-step explanation:


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3 years ago
Morris has 1.25 pounds of strawberries he uses 0.25 pounds of strawberries to make one serving how many servings can Morris make
Butoxors [25]
You have to divide 1.25 by .25 the answer is 5 servings
6 0
3 years ago
Samuel has a collection of toy cars. His favorites are the 27 red ones which make up 60%, percent of his collection.
Natasha_Volkova [10]
I'm just gonna assume that the question is what's the total number of cars he has/ the other part of his collection

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4 0
3 years ago
If x=9, what is the value of your in the equation below? y=8x-(1+4x)
Phantasy [73]
Y=72-(1+36)
Y=72-37
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5 0
2 years ago
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