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3 years ago

Write a fraction whose equivalent decimal number is a terminating decimal write the equivalent decimal

Mathematics

1 answer:

Viktor [21]3 years ago

4 0

a. 1/4

b. 0.25

think long division

4 goes into 1 zero times

4 goes into 10 2 times with 2 left over.

bring down a zero

4 goes into 20 5 times

since a decimal was needed to show the quotient being less than 1, the quotient is 0.25

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As of mid-2016, the world's population was about 7.4 billion people. The population of Country A was 226 million. In mid-2016, w

kherson [118]

Answer:

The percentage of country A population to the world population

= 3.05%

Step-by-step explanation:

Country A population as of 2016

= 226 million

= 226000000

The world population as of 2016

= 7.4 billion

= 7400000000

The percentage of country A population to the world population

= Country A population /The world population

The percentage of country A population to the world population

= 226000000/7400000000

The percentage of country A population to the world population

= 0.03054

Now multiplying by 100

= 3.05%

3 0

3 years ago

The perimeter of Δ ABC is 450 ft. If AB= 9x, BC=41x and CA=40x, what is the area of the triangle?

Nikolay [14]

Answer:

$A = 4500 ft^2$

Step-by-step explanation:

By definition:

The pre-meter P of a triangle ABC is equal to the sum of the length of its sides.

We know that:

$P = 450\ ft\\AB = 9x\\BC = 41x\\CA = 40x$

The perimeter is:

$P = AB + BC + CA\\P = 450 = 9x + 41x + 40x\\90x = 450\\x = 5$

Now we find the length of the sides:

$AB = 45\\BC = 205\\CA = 200$

Once the length of the sides is known, we use Heron's formula to calculate the area.

First I find the semiperimeter S.

$S = 0.5(45 + 205 +200)\\S = 225$

Then the Area is:

$A = \sqrt{s(s-AB)(s-BC)(s-CA)}\\\\A = \sqrt{225(225-45)(225-205)(225-200)}\\\\A = 4500\ ft^2$

5 0

4 years ago

The number of bacteria present after n generations is represented by the expression below, where i is the initial number of bact

kobusy [5.1K]

Answer:

8000

Step-by-step explanation:

The function is given as:

$P(n)=i \cdot 2^n$

Where I=Initial Population

n=Number of Generations

If $i=10^3$ , we want to determine the population of bacteria when n=3.

$P(3)=10^{3} \cdot 2^3$

$=(10*2)^3 =20^3$

=8000

There will be 8000 bacteria after 3 generations.

4 0

4 years ago

Jamie bought 15 apples. He ate 3 apples. What percentage of the apples did Jamie eat?

natka813 [3]

(3 / 15) * 100 = 20%

He ate 20% of apples

Hope it helps:)

3 0

3 years ago

Can anyone help me with the answer to this please?

stiks02 [169]

Answer:

Step-by-step explanation:

To find the inverse function switch variables out and solve for y

y=(x+3)/x swap variables to get

(y+3)/y=x then solve for y

y+3=yx

y-yx+3=0

y-yx=-3

y(1-x)=-3

y=-3/(1-x)

y=3/(x-1)

8 0

3 years ago