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kirza4 [7]
2 years ago
11

Pleas help !!!! Need explanation as well

Mathematics
2 answers:
irinina [24]2 years ago
5 0

Answer:


I think the answer would be D because it makes more sense.


Fynjy0 [20]2 years ago
4 0

Answer:

B, they are independent events separate from each other.

Step-by-step explanation:

Being born a female wouldn’t affect the colorization of the creature, they would both be independent events separate from each other.

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BartSMP [9]
Add Four on both sides
6 0
2 years ago
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Mary​'s car will go 261 miles on 14.5 gallons of gasoline in highway driving.
suter [353]

Answer:

a) 91 1/6 gallons

b) 2502 miles

Step-by-step explanation:

You are given a number of miles and a number of gallons for the car. The ratio of these numbers is ...

  (261 mi)/(14.5 gal) = 18 mi/gal

We presume this value is constant for this car. Then the questions can be answered by forming and solving a proportion:

a) 1641 miles/(gallons) = 18 mi/(1 gal)

Multiplying by gallons and dividing by 18 mi/gal, we get

  1641/18 gal = (gallons) = 91 1/6 gal

It will take 91 1/6 gallons of gasoline for Mary to drive to her friend's house.

___

b) Same deal, but the miles are unknown.

  (miles)/(139 gal) = (18 mi)/(1 gal)

Multiplying by 139 gal gives ...

  (18 mi)·139 = (miles) = 2502 mi

139 gallons of gasoline will let Mary drive 2502 miles.

3 0
2 years ago
A refrigerator costs $580 a year to run. A family purchases a new one for $1200 that will save them 22% annually in energy costs
NeTakaya

Answer:

It will take nine years and four months for the refrigerator to pay for itself.

Step-by-step explanation:

The new refrigerator which costs $1200, saves the family 22% annually in energy cost.

Since the old refrigerator costs $580 to run, we want to determine how many years it will take for 22% of $580 per year to make $1200.

22% of $580

= 580 × 0.22

= 127.6

That is, it saved then $127.6 per year.

Now,

$1200/127.6

≈ 9.4

Which means, it will take 9 years and 4 months for the refrigerator to pay for itself.

7 0
2 years ago
Write the following percents as both fractions and decimals.
Leona [35]
(last part)
25%
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5 0
3 years ago
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A principal of $2600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 8 years?
almond37 [142]
To add 7.5% to a number you simply multiply the number by 1.075. To compound that amount year after year, you raise 1.075 to an exponent that corresponds to the number of years.  2600*(1.075^8)=<span>4637.04234646</span>
3 0
2 years ago
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