Step-by-step explanation:
I have used tick and cross to show true n false
....,...............
The unit rate would be the price for 1 ticket.
12 dollars / 3 tickets = $4 per ticket.
The ratio would be 4:1
Answer:
The answer is 21
Step-by-step explanation:
Answer: Its light-collecting area would be 25 times greater than that of the 10-meter keck telescope.
Step-by-step explanation:
1. To solve this problem you must apply the formula for calculate the area of a circle, which is shown below:

Where<em> r</em> is the radius of the circle.
2. The diameter of a circle is:

Where <em>r</em> is the radius of the circle.
3. Therefore, keeping this on mind, you have that the light-collecting area of a 50-meter keck telescope is:

4. And the light-collecting area of a 10-meter keck telescope is:

5. Divide
by
, then:

6. Therefore, its light-collecting area would be 25 times greater than that of the 10-meter keck telescope.
Answer: A: the answer is -7
B: the answer is $95.00
Step-by-step explanation: Pls mark me as Brainiest