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malfutka [58]
3 years ago
5

A reflecting telescope contains a mirror shaped like a parabola of revolution. If the mirror is 16 inches across at its opening

and is 2 feet deep, where will the light be concentrated?
Mathematics
1 answer:
choli [55]3 years ago
5 0

Answer:

18

Step-by-step explanation:

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At the amusement park, Laura paid $6.00 for a small cotton candy. Her older brother works at the park, and he told
BabaBlast [244]

Answer:

yes

The price of marked up candy is $6.00

perentage of mark up is 300%

let the marked up amount be represented as x

let 300% mark up be represented as 3x

the equatiopn for finding the price before markup

can be represented as 3x-x=$6.

                                    2x=$6

                                    x=$3.

8 0
3 years ago
Kenny had a total of 140 minutes to read, do homework, and play video games he spent x minutes reading, he spent 2(x+5) minutes
Licemer1 [7]

Answer:

He spent 52.5 minutes reading.

Step-by-step explanation:

The equation from the word problem is 2(x+5)+25=140. Distribute 2 to the parentheses and get 2x+10+25=140. Combine like terms to get 2x+35=140. Subtract 35 from both sides and get 2x=105. Divide both sides by 2 and your final answer is x=52.5

7 0
2 years ago
Anyone pls helppp meeeee
Citrus2011 [14]

Answer:

c answer becoz may ifhridyrhfujghrhrjjtufuueb

3 0
2 years ago
ANSWER QUICK.
Debora [2.8K]

Answer:

14 %  discount

Step-by-step explanation:

39.00 x .14 = 5.46

39.00 -5.46 = $33.54

6 0
3 years ago
-5/8 - 2/7 (fraction form only)<br> P.S. help me please :)
vesna_86 [32]
Here is a picture of the answer:

7 0
3 years ago
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