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enot [183]
3 years ago
8

Benito spent $1761 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for ga

soline. If he drove 7163 miles, what was the average cost of the gasoline per mile?
Mathematics
1 answer:
Serggg [28]3 years ago
8 0
The averge per mile is 4.06
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The water in a pool evaporates at a rate of 16 gallons per week. What integer represents the change in the number of gallons of
Sav [38]
If 16 gallons of water evaporates per week and we have 24 weeks, we can jsut multiply it.
So 16*24=384 gallons of water evaporates.
6 0
3 years ago
9/11 times 7/10 simplified
Pavel [41]
63/110 is the answer
3 0
3 years ago
How many 1/2 cm cubes will fit in a cube with a side length of 8 cm?
torisob [31]

Answer:

4096

Step-by-step explanation:

0.5×0.5×0.5=0.125cm³

8×8×8=512cm³

512÷0.125=4096

7 0
3 years ago
Assume that we have m coins. We toss each one of them n times. The probability of heads showing up for each coin isp. What’s the
olga nikolaevna [1]

Answer:

1-(1-p^n)^m

Step-by-step explanation:

For a coin, the probability of head showing in a single toss is p.

P(H)=p

Its complement, the probability of not head is

P(\Sim H)=1-p

This is a binomial distribution. In n tosses, the probability of having all heads (i.e. n heads) is

P(\text{all heads})=\binom{n}{n}p^n(1-p)^0=p^n

Let's call this value a.

For m coins, we determine the probability of at least 1 coin showing all heads by first finding its complement i.e. the probability of no coin showing all heads. This is also a binomial distribution.

P(\text{no coin showing all heads})=\binom{m}{0}a^0(1-a)^m=(1-a)^m

P(\text{at least 1 coin showing all heads})=1-P(\text{no coin showing all heads})

P(\text{no coin showing all heads})=1-(1-a)^m=1-(1-p^n)^m

8 0
3 years ago
A pyramid has a surface area of 539 ft.² what is the surface area of a similar pyramid that is smaller by a scale Factor of 1/7
Nataly [62]

Answer:

77 ft²

Step-by-step explanation:

Given that:

Surface Area of larger pyramid = 539 ft²

Scale factor of the smaller pyramid = 1/7

Tbe surface area of the smaller pyramid will be :

Scale factor * surface area

1/7 * 539ft²

= 539 ft² / 7

= 77 ft²

5 0
3 years ago
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