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ANEK [815]
3 years ago
10

Mercury is the closest planet to the Sun, with an average distance of 35,000,000 miles. It takes light about 3 minutes to travel

from the Sun to Mercury.
Neptune is the farthest, with an average distance of 2.8 × 109 miles from the Sun.
How many times farther from the Sun is Neptune than Mercury? How long does it take light to reach Neptune? Follow the steps to find out.
1. Write the distance from the Sun to Mercury in scientific notation. Include units with your answer.

Write your answer in the space below.














2. Write and simplify an expression showing how many times farther Neptune is from the Sun than Mercury. Write the result in scientific notation.

Write your answer in the space below.














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

Write your answer in the space below.














4. It takes light from the Sun about 3 minutes to reach Mercury. How many hours does it take light from the Sun to reach Neptune? Show your work.
Mathematics
2 answers:
GarryVolchara [31]3 years ago
8 0

Answer:

1) 3.5 x 10^7

2) 3.5 x 10^7/ 2.8 x 10^9 = 1.25 x 10^-2

I don't know number 3 or number 4. I am still trying to figure those out.

klemol [59]3 years ago
4 0

Sorry I'm too dumb to figure out the answer, I hope you find help soon.

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Explain how an enlargement or a reduction in the dimensions of a building would cause a change in the Scale factor.​ I need asap
murzikaleks [220]

Answer:

With an enlargement the scale factor would be greater than zero. With a reduction the scale factor would be a fraction or maybe even a decimal.

6 0
3 years ago
The radius of a circle is 8 inches. What is the circle's area?
sveta [45]

Answer:

200.96

Step-by-step explanation:

3.14 x (8x8) = 200.96

8 0
3 years ago
Circle the equations that represent quadratic functions a. y=3x+1 b. y=x^2+3 c. y=x^3-3 d. x^2+3y=8
Elena L [17]

Answer:

B. y=x^2+3 \\\\D.$ $x^2+3y=8

Step-by-step explanation:

A quadratic function is a function in which the highest power of the unknown variable is 2.

Formally, a quadratic function is defined as a function of the form:

f(x)=ax^2+bx+c, a\neq 0

From the given options, only B and D has the highest power as 2. Therefore, the equations that represent quadratic functions are:

B. y=x^2+3 \\\\D.$ $x^2+3y=8

4 0
3 years ago
A collection of dimes and quarters is worth $10.45. There are 70 coins in all. Find how many of each there are
Advocard [28]

There are 47 dimes and 23 quarters.

Step-by-step explanation:

Total amount = $10.45 = 10.45*100 = 1045 cents

Total coins = 70

1 dime = 10 cents

1 quarter = 25 cents

Let,

Dimes = x

Quarters = y

According to given statement;

x+y=70   Eqn 1

10x+25y=1045   Eqn 2

Multiplying Eqn 1 by 10;

10(x+y=70)\\10x+10y=700\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(10x+25y)-(10x+10y)=1045-700\\10x+25y-10x-10y=345\\15y=345

Dividing both sides by 15;

\frac{15y}{15}=\frac{345}{15}\\y=23

Putting y=23 in Eqn 1

x+23=70\\x=70-23\\x=47

There are 47 dimes and 23 quarters.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/12954015
  • brainly.com/question/13018923

#LearnwithBrainly

6 0
3 years ago
A TV goes on sale with a discount of 28%. The original price of the TV is $942. What is the sales price of the TV?
Nat2105 [25]
28% of 942 = 263.76

942 - 263.76

= $678.24
7 0
3 years ago
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