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cestrela7 [59]
3 years ago
14

If someone sleeps 8 hours a day for 75 years how many hours did that person sleep in his lifetime?

Mathematics
1 answer:
ra1l [238]3 years ago
7 0
The person sleeps 8 hours a day.

There are 365 days in a year and 366 days in a leap year.

A leap year occurs every 4 years.

If we divide 75 by 4, we get 18.75. This number represents how many leap years occurred in 75 years. So, the person experienced approximately 19 leap years.

19 leap years has 6954 days.

The other 56 years, which have 365 days each year, have a total of 20,440 days.

That's a total of 27,394 days.

27,394 × 8 = 219,152 hours

This is approximately 24 years or 9,131 days.
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Andrew's math teacher entered the seventh grade students in a math competition there was an enrollment fee of $30 and also an $1
N76 [4]

Answer: 110

Step-by-step explanation:

Given;

Total cost C = $151

Enrollment fee E = $30

Charge per 10 test t = $11

n is the number of packet of test taken.

The questions can be represented by the equation below;

30 + 11n = 151

Substracting 30 from both sides.

11n = 151-30 = 121

n = 121/11

n = 11

Since the number of packet of test is 11 and each packet contains 10 tests. The number of test N is given by;

N = 10 n = 10 ×11 = 110

N = 110

5 0
3 years ago
If f(x) = 6(9)^x then f(1/2) =?
Oksi-84 [34.3K]
F(x) = 6(9)^x

f(1/2) = 6(9)^(1/2)

f(1/2) = 6(9)^(0.5)

f(1/2) = 6*(9^0.5)               9^0.5 = √9 = +3 or -3.

f(1/2) = 6*3 = 18          or       6*-3 = -18

f(1/2) = 18   or   -18     

Hope this helps.
4 0
2 years ago
Which expressions are equivalent to (d^1/8) ^5
Tanya [424]

Answer:

Formula used : (a^m)^n = a^(m×n)

→{( {d}^{ \frac{1}{8} }) }^{5}  =  {d}^{( \frac{1}{8}\times 5) }  =   \boxed{{d}^{ \frac{5}{8} } }✓ \\

  • <u>d^⅝</u> is the right answer.
8 0
2 years ago
An electrician bent a section of copper wire into a partial circle as shown. The dimensions are
ira [324]

Answer:

Length = 3.84 feets (nearest hundredth)

Step-by-step explanation:

The length of section of wire can be obtyaiejd using the length of of a arc formular :

Length of arc = θ/360° * 2πr

Radius, r = 2.5 feets

Length of arc = (88/360) *2πr

Length of arc = (88/360) * 2π*2.5

Length of arc = 0.244444 * 15.707963

Length of arc = 3.8397

Length = 3.84 feets (nearest hundredth)

7 0
2 years ago
What is 3 raised to the power of 1?
Gre4nikov [31]

Answer:

Three to the power of one is still 3

Step-by-step explanation:

Anything to the power of itself is the original number. :D

5 0
3 years ago
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