Mathematics Middle School

The average distance from the Sun to the Earth is 1.5 × 10^11 meters and the speed of light is 3 × 10^8. If distance = rate times time, how many seconds on average does it take for the Sun's light to reach Earth?

Answers

Answer 1

Answer:

1.503⋅10^11

light years

Answer 2

The time taken for the Sun's light to reach Earth is t = 5 x 10² seconds

What is Speed?

Speed is defined as the rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude

Speed = Distance / Time

Given data ,

Let the speed be represented as S

Now , the value of S is

S = D / T

where , the distance D = 1.5 × 10¹¹ meters

S = 3 × 10⁸ m/s

And , T = D / S

On simplifying , we get

Time taken T = 1.5 × 10¹¹ / 3 × 10⁸

T = 0.5 x 10³

T = 5 x 10² seconds

Hence , the time taken is T = 500 seconds

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Related Questions

Evaluate 1/3m - 1 - 1/2n when m = 21 and n = 12

Answers

Answer:

the answer is 0.

Step-by-step explanation:

1/3(21) - 1 - 1/2(12) = 7 - 1 - 6 = 0

The Answer is zero. You just plug in the 21 for m and 12 for n.

Maggie bought a $10 book, a $14 book, and
a $4 magazine. The store was having a sale on
their books only - all books were marked down
20%. If the sales tax rate is 10%, what will
Maggie's total cost be after the discounts and
tax?

Answers

Answer:

Step-by-step explanation:

1.1(.8(10)+.8(14)+4)

1.1(8+11.2+4)

1.1(23.2)

$25.52

Answer:

$25.52

Step-by-step explanation:

10*.2=2

14*.2=2.8

10-2=8

14-2.8=11.2

11.2+8+4=23.2

23.2*.1=2.32

23.2+2.32=25.52

Using the Low Score System,a boat’s worst finish is thrown out and the remaining scores are added.The boat with the lowest total score wins. Is this boat guaranteed to be the winner? explain

Answers

Answer:

A1. NUMBER OF RACES

The number of races scheduled and the number required to be completed to constitute a series shall be stated in the notice of race or sailing instructions.

A2. SERIES SCORES

A2.1.

Each boat’s series score shall, subject to rule 90.3(b), be the total of her race scores excluding her worst score. (The notice of race or sailing instructions may make a different arrangement by providing, for example, that no score will be excluded, that two or more scores will be excluded, or that a specified number of scores will be excluded if a specified number of races are completed. A race is completed if scored; see rule 90.3(a).) If a boat has two or more equal worst scores, the score(s) for the race(s) sailed earliest in the series shall be excluded. The boat with the lowest series score wins and others shall be ranked accordingly.

A2.2.

If a boat has entered any race in a series, she shall be scored for the whole series.

A3. STARTING TIMES AND FINISHING PLACES

The time of a boat’s starting signal shall be her starting time, and the order in which boats finish a race shall determine their finishing places. However, when a handicap or rating system is used a boat’s corrected time shall determine her finishing place.

A4. LOW POINT SYSTEM

The Low Point System will apply unless the sailing instructions specify another system; see rule 90.3(a).

A4.1.

Each boat starting and finishing and not thereafter retiring, being penalized or

given redress shall be scored points as follows:

Finishing place Points First 1 Second 2 Third 3 Fourth 4 Fifth 5 Sixth 6 Seventh 7 Each place thereafter Add 1 point

A4.2.

A boat that did not start, did not finish, retired or was disqualified shall be scored points for the finishing place one more than the number of boats entered in the series. A boat that is penalized under rule 30.2 or that takes a penalty under rule 44.3(a) shall be scored points as provided in rule 44.3(c).

A5. SCORES DETERMINED BY THE RACE COMMITTEE

A boat that did not start or finish or comply with rule 30.2 , 30.3 , 30.4 or 78.2 , or that retires or takes a penalty under rule 44.3 (a), shall be scored accordingly by the race committee without a hearing. Only the protest committee may take other scoring actions that worsen a boat’s score.

A6. CHANGES IN PLACES AND SCORES OF OTHER BOATS

A6.1.

If a boat is disqualified from a race or retires after finishing, each boat with a worse finishing place shall be moved up one place.

A6.2.

If the protest committee decides to give redress by adjusting a boat’s score, the scores of other boats shall not be changed unless the protest committee decides otherwise.

A7. RACE TIES

If boats are tied at the finishing line or if a handicap or rating system is used and boats have equal corrected times, the points for the place for which the boats have tied and for the place(s) immediately below shall be added together and divided equally. Boats tied for a race prize shall share it or be given equal prizes.

A8. SERIES TIES

A8.1.

If there is a series-score tie between two or more boats, each boat’s race scores shall be listed in order of best to worst, and at the first point(s) where there is a difference the tie shall be broken in favour of the boat(s) with the best score(s). No excluded scores shall be used.

A8.2.

If a tie remains between two or more boats, they shall be ranked in order of their scores in the last race. Any remaining ties shall be broken by using the tied boats’ scores in the next-to-last race and so on until all ties are broken. These scores shall be used even if some of them are excluded scores.

A9. RACE SCORES IN A SERIES LONGER THAN A REGATTA

For a series that is held over a period of time longer than a regatta, a boat that came to the starting area but did not start, did not finish, retired or was disqualified shall be scored points for the finishing place one more than the number of boats that came to the starting area. A boat that did not come to the starting area shall be scored points for the finishing place one more than the number of boats entered in the series.

A probability chart states that 25% of players win a game. A statistics class designs a simulation to approximate the probability of 5 randomly selected players winning the game.

Which statement is true?

Answers

Answer:

the 4

Answers

Answer:

The base would be 19.4

Step-by-step explanation:

Evaluate 5-\dfrac{t}35−
3
t

5, minus, start fraction, t, divided by, 3, end fraction when t=12t=12

Answers

Answer:

Step-by-step explanation:

If t is 12, then 12 divided by 3 is 4, and if you do 5 - 4, you get 1 :)

I hope this is correct.

H(x)=-5(x 1/2)^2+5/4 Or X1=0,x2=1

Amira bought 3.34 lbs. of grapes at $0.67 per pound. How much money did she spend?

Answers

Answer:

$2.24

Step-by-step explanation:

you multiply 3.34 and 0.67 then you round

0.67 x 3 = 2.01
0.67 x 0.34 = 0.2278 —> rounded to 0.23
2.01 + 0.23 = 2.24
she spent $2.24

help plzzz ..........

Answer:

1/25

Step-by-step explanation:

Since it only contains 1 unknown, given that r = 0, what you need to do is to substitute r=0 into the expression

= (5(0) + 1/5)^2

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

We can use the slope-intercept form of a linear equation to find the

the y-intercept of the line.

The slope-intercept form of a linear equation is:

y = mx + b

where m is the slope of the line, and b is the y-intercept.

We are given the slope of the line that contains the points (1, -1) and

(2, 3) is 4.

Therefore, we can substitute m = 4 and one of the points into the equation, and solve for b.

Let's use the point (1, -1):

y = mx + b

-1 = 4(1) + b

-1 = 4 + b

b = -1 - 4

b = -5

The y-intercept of the line is -5.

The equation of the line in slope-intercept form is:

y = 4x - 5

Thus,

The y-intercept of the line is -5.

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What is this answer (please)

Answers

Answer:

1) 25

3) 100is the upper limit

4) 5 is the frequency

1) 25
2)
3)100 is the upper limit
4) is the frequency

Marco makes $18.80 per hour working at a furniture store. After 40 hours in one week, he makes 1.5 times his regular wage. How much did Marco make working 52 hours in one week?

Answers

Answer:

Alot of money

Step-by-step explanation:

Come on we all know this

$1090.40 18.8*40=752 18.8*1.5=28.2 28.2*12=338.4 338.4+752=1090.40

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