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dsp73
3 years ago
12

A country has 23,456,900 citizens out of those 5.5 million are under 5.5 feet tall. What percentage of the population is under 5

.5 feet tall?
Mathematics
1 answer:
shusha [124]3 years ago
5 0
To get the percentage of citizens under 5ft total we use the formula:
(number of citizens who are under 5.5 ft)/(Total population)×100%
number of citizens who are under 5.5 ft=5,500,000
Total population=23,456,900
Hence:
Percentage of population under 5.5 ft tall
=5,500,000/23,456,900×100
=23.45%

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svet-max [94.6K]

Answer:

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That would be x = 1  

Now substitute and resolve to find y.  

5(1) + 2y = 9

5 + 2y = 9

2y = 4

y = 2

So our answer x=1 and y = 2. (1,2)

Proof :  

5(1) + 2(2) = 9

5+ 4 = 9

9 = 9

Step-by-step explanation:

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4 0
2 years ago
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If x is the first number in the progression, and r is the common ratio between consecutive terms, then the first four terms in the progression are

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We want to have

\begin{cases}xr^2-x=12\\xr^3-xr=36\end{cases}

In the second equation, we have

xr^3-xr=xr(r^2-1)=36

and in the first, we have

xr^2-x=x(r^2-1)=12

Substituting this into the second equation, we find

xr(r^2-1)=12r=36\implies r=3

So now we have

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Then the four numbers are

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balandron [24]

9514 1404 393

Answer:

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Step-by-step explanation:

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  (3y)(2x^2 -1x -8xy +4y)

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