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Anon25 [30]
3 years ago
12

A bullet travels at 1128 feet per second. How many miles per hour does that bullet go?

Mathematics
1 answer:
Katena32 [7]3 years ago
7 0
1128 feet  = 1128/5280   miles
it travels at 1128/5280 miles per second

to convert to miles / hour  we multiply by 3600

so speed of the bullet  = (1128 * 3600) / 5280   =  769.1 mph to nearest tenth.

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sergiy2304 [10]

Answer: Stephanie read more than 7 books because 8 points for 9 books each is equal to 72 points, which is the total amount of books she read.

Step-by-step explanation:

72 ÷ 8 × 9

x = 9

Hope this helped! :D

5 0
2 years ago
Read 2 more answers
A certain prescription drug diminishes in the system at a rate of 25% per hour. If a person was administered 1450mg of the drug,
Helen [10]

9514 1404 393

Answer:

  • 459 mg
  • about 20 hours

Step-by-step explanation:

The decay factor is 1 -25% = 0.75 per hour, so the exponential equation can be written ...

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a) After 4 hours, the amount remaining is ...

  r(4) = 1450·0.75^4 ≈ 458.79 . . . mg

About 459 mg will remain after 4 hours.

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b) To find the time it takes before the amount remaining is less than 5 mg, we need to solve ...

  r(t) < 5

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It will take about 20 hours for the amount of the drug remaining to be less than 5 mg.

7 0
3 years ago
A company has fixed operating costs of $2,137.00 per month with a production cost of $15.15 per unit. If each unit brings $33.09
vampirchik [111]
Y=2,137.00-(15.15*X)+(33.09*X)

Its simple arithmetic when you get down to it. The $2,137 won't change because it is the base rate per month, meaning even if they don't make any units they will still earn that much in the month. You subtract from that the cost to make a unit, in this case it is $15.15 per unit, so you multiply the cost by number of units to get the month's total costs. Then add the total month's profits by multiplying the number of units by the profits of one unit.
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Answer:

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Step-by-step explanation:

1-4=-3

4 0
3 years ago
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Temka [501]
D is the correct answer

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