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nataly862011 [7]
2 years ago
8

Choose all items which are true.

Mathematics
1 answer:
alexandr402 [8]2 years ago
6 0

Answer:

y98

Step-by-step explanation:

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A city has a population of 310,000 people. Suppose that each year the population grows by 9%. What will the population be after
Leno4ka [110]

Answer: 644,800

Step-by-step explanation:

This can also be solved using the terms of Arithmetic Progressions.

Let the 13 years be number of terms of the sequences (n)

Therefore ;

T₁₃              = a + ( n - 1 )d , where a = 310,000 and d = 9% of 310,000

9% of 310,000 = 9/100 x 310,000

                        = 27,900

so the common difference (d)

                     d = 27,900

Now substitute for the values  in the formula above and calculate

T₁₃              = 310,000 + ( 13 - 1 ) x 27,900

                  = 310,000 + 12 x 27,900

                  = 310,000 + 334,800

                  = 644,800.

The population after 13 years = 644,800.

 

3 0
2 years ago
Is 3x+2y=8 a quadratic equation?
Ierofanga [76]

Answer:

No.

Step-by-step explanation:

No, it is a linear equation.  There are no exponents on the x or y variables.

7 0
2 years ago
How to solve for x in the equation a 3x=x/2?
aalyn [17]
3x = x / 2

Mmc (2,1) = 2

6x = x
6x- x = 0
5x= 0
x = 0/5
x = 0


8 0
3 years ago
Write 3 ratios that are equivalent to 7.8:
pentagon [3]
14:16 21:24 28:32 are three ratios that are equivalent
5 0
3 years ago
A man travelled 3/5 of his journey by rail, 1/4 by a taxi, 1/8 by a bus and the remaining 2 km on foot.What is the length of his
docker41 [41]
Hello friend,here is the solution

<span>Let x be the total distance </span>

<span>Distance travelled by rail = 3/5 x </span>

Distance travelled by taxi = 1/4 x

<span>Distance travelled by bus = 1/8 x </span>

<span>The equation we obtain is </span>
========================

<span>x = 3/5 x + 1/4 x + 1/8 x +2 </span>

______________________________________

<span>hope this solution helps you......</span>
7 0
3 years ago
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