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-Dominant- [34]
3 years ago
10

The radius of the Sun is about 700,000,000 meters, the radius of the planet Venus is about 6,000,000 meters, and the radius of t

he supergiant star Betelgeuse is about 500,000,000,000 meters. Which of these statements is correct? Select three that apply.
A
The radius of the Sun is about 7×107 meters, and the radius of Venus is about 6×106 meters.

B
The radius of the Sun is about 7×108 meters, and the radius of Betelgeuse is about 5×1011 meters.

C
The radius of Venus is about 6×106 meters, and the radius of the Sun is about 7×108 meters.

D
The radius of Venus is about 6×107 meters, and the radius of Betelgeuse is about 5×1011 meters.

E
The radius of Betelgeuse is about 5×1010 meters, and the radius of the Sun is about 7×108 meters.

F
The radius of Betelgeuse is about 5×1011 meters, and the radius of Venus is about 6×106 meters.
Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:The radius of Betelgeuse is about 5 × 1011 meters, and the radius of Venus is about 6 × 106 meters.

Step-by-step explanation:

because the 500 billion Has 11 0s so it will be 5 x 10^11    

6,000,000 has 6 0s so it will be 10^6

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Question:

Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.

How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?

Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read.

Answer:

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Step-by-step explanation:

For Jesse:

Rate = 30\ pages/day

This implies that Jesse will cover 30y in y days

For Amir:

Rate = 35\ pages/day

This implies that Amir will cover 35x in x days

Because Amir starts a day later,

y = x + 1

So, we have the following equations:

Jesse = 30y

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To get the number of days when they read the same number of pages, we have:

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Substitute values for Jesse and Amir

30y = 35x

Substitute x + 1 for y

30(x+1) = 35x

Open bracket

30x+30 = 35x

Collect Like Terms

30 = 35x-30x

30 = 5x

Solve for x

\frac{30}{5} = \frac{5x}{5}

\frac{30}{5} = x

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x = 6

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