One fourth of a number is added to one fifth of the number. If the result is 8, find the number

Mathematics

2 answers:

Ainat [17]1 year ago

8 0

Answer:

17.7778

Step-by-step explanation:

nSolve(1/4n + 1/5n = 8,n)

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Fynjy0 [20]1 year ago

5 0

Answer:

1/5 of a number = 8 so 5 times 8 = 40

Step-by-step explanation:

Hope this helps!

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tino4ka555 [31]

Answer:

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Step-by-step explanation:

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2 years ago

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beks73 [17]

This question is basically asking you what number was this originally until we timesed it by 100. For the first column take away two zeros or for answers like 560 and 4830 imagine there is a decimal point at the end and move it two spaces forward so it would now be 5.6 and 48.3

For the second column add two zeros at the end instead.

For the questions at the bottom basically for all the questions except the bottom one how many numbers follow the first number.

For example.

96,629 = 1
100

Because three numbers follow the first 6.

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2 years ago

The following table shows the estimated populations and annual growth rates for four countries in the year 2000. Find the expect

Liula [17]

Answer:

After 25 years the population will be:

Australia: 22271200
China: 1580220878
Mexico: 157380127
Zaire: 112794819

Step-by-step explanation:

Growth rate problem that has a growth rate proportional to the population size can be solved using the equation:

P(t) = P₀eʳᵗ

t is your unit of time. It could be days, or hours, or minutes. It changes depending on each problem. In this problem, t is measured in years because you're jumping from 2000 to 2025. Years just makes the most sense to measure that leap in time.

P(t) is the population at time t. An example in this problem could be P(20) would be the population 20 years after the initial count. or maybe P(12) would be the population 12 years after the initial count. or P(0) would be the initial count of the population.