All categories

4 years ago

Please help me with this question, thanks.

Mathematics

1 answer:

arlik [135]4 years ago

8 0

Answer:

2.48×10^13 miles

Step-by-step explanation:

There are about (365.25 days)(86400 seconds/day) = 31,557,600 seconds in one year. There are 1609.344 meters in one mile. So, the conversion can be written as ...

(4.22 ly) (3×10^8 m/s) (3.15576×10^7 s/yr) / (1.609344×10^3 m/mi)

= 4.22×3×3.15576/1.609344×10^(8+7-3) mi

≈ 24.8×10^12 mi

4.22 light years is about 2.48×10^13 miles

You might be interested in

Which are shown on the diagram? Check all that apply.

defon

Answer:

i think b,c,d and f

Step-by-step explanation:

7 0

3 years ago

Another question this math is not my favorite ? Struggling but son what understanding it . Help please

Evgen [1.6K]

12/3= 4 <-- This equation shows that one box will benefit 4 children.
24/4=6 <-- This equation shows how many boxes will benefit 24 children.

Therefore, Raymond should buy 6 boxes.

5 0

3 years ago

In Lucille’s class, 35% of the students have blond hair. There are 20 students in the class. How many students have blond hair.

MrRissso [65]

Answer:

7 the answer is 7

Step-by-step explanation:

1. We assume, that the number 20 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 20 is 100%, so we can write it down as 20=100%.

4. We know, that x is 35% of the output value, so we can write it down as x=35%.

5. Now we have two simple equations:

1) 20=100%

2) x=35%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

20/x=100%/35%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 35% of 20

20/x=100/35

(20/x)*x=(100/35)*x -

20=2.85714285714*x -

20/2.85714285714=x

7=x

x=7

now we have:

35% of 20=7

we multiply both sides by x

then we divide both sides by 2.85714285714 to get x

3 0

4 years ago

Read 2 more answers

Pls help with these questions

Vsevolod [243]

1. 11.32
2. 69.12
Hope it helps

4 0

3 years ago

Sanam eats 5 almonds daily. How many almonds does she eat in 157 days?

Ede4ka [16]

Answer:

785 almonds

Step-by-step explanation:

157 x 5 = 785

8 0

3 years ago