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1 year ago

Assume that China has about 1 billion people, an increase of 15 million would result in a relative change of ___%

Mathematics

1 answer:

seraphim [82]1 year ago

5 0

Answer:

1.5%.

Step-by-step explanation:

The fractional increase is 15,000,000 / 1,000,000,000

= 15/1000

= 15 * 100 / 1000

= 1.5%

You might be interested in

Pudge has three times as many apples as Ace, and Ace has twice as many as Christi. How many apples does each have if pudge has 1

mote1985 [20]

Answer:

<h3>Pudge has 12 morethan apples that is 24 apples and both Ace and Christi has not more than 12 apples together they has atmost 12 apples.The apples does each having is</h3><h3>P = Pudge's Apples =24</h3><h3>A = Ace's Apples =8</h3><h3>and C = Christi's Apples=4.</h3>

Step-by-step explanation:

Let P = Pudge's Apples

Let A = Ace's Apples

Let C = Christi's Apples

<h3>To find how many apples does each have if Pudge has 12 more than both Ace and Christi together:</h3>

Given that P = 3A , A = 2C and P = A + C + 12

Substitute the value for P in P = A + C + 12 we get

3A = A + C + 12

3A-A=C+12

2A=C+12

From A = 2C we have that $C=\frac{A}{2}$

Substitute the value C:

$2A=\frac{A}{2}+12$

$2A-\frac{A}{2}=12$

$\frac{4A-A}{2}=12$

$\frac{3A}{2}=12$

$3A=12\times 2$

$A=\frac{24}{3}$

Substituting the value of A in P=3A we get

P = 3(8)

Substituting the values of P and A in P = A + C + 12

$24=8+C+12$

$24=C+20$

$24-20=C$

4=C

Rewritting we get

<h3>∴ C=4 </h3><h3>Hence Pudge has 12 morethan apples that is 24 apples </h3><h3>and both Ace and Christi has not more than 12 apples together they has atmost 12 apples</h3>

7 0

1 year ago

The Johnsons need to put up a fence, as shown in the picture. They have already measured two of the sides. Find the length of th

saw5 [17]

Answer:

Step-by-step explanation:

its D for sure

7 0

1 year ago

Read 2 more answers

The length of a Train A is 480 m and it takes 2 minutes to cross a tunnel of length 1,320 m. The length of a Train B, which is s

nasty-shy [4]

Answer: 52.94

Step-by-step explanation:

Length of train A = 480m

Tunnel length = 1320m

Time taken to cross tunnel = 2 mins = 120sec

Length of train B = 420m

Train B is slower than train A

Difference between their speed = 18km/hr

18km/hr = (18×1000)/3600 = 5m/s

Speed of train A :

Speed = distance / time

Speed = 1320 / 120 = 11m/s

Therefore, speed of train B :

(11 - 5)m/s = 6m/s

Relative speed of the two trains is therefore;

(Speed of A + speed of B)

Note : they are moving in opposite direction

( 11 + 6)m/s = 17m/s

Therefore time taken to cross each other :

(Sum of the length of both trains / relative speed of the trains)

Time taken = (480m + 420m) / (17m/s)

Time taken = 900m / 17m/s

Time taken = 52.94s

4 0

1 year ago

Using the graph below, find values for the radius r, the angle theta (in both degrees and radians), and the coordinates for the

Leto [7]

<span>if we take the centre of the circle as being the origin, we can say that

x coordinate is :cos o = x/r so x
= r cos o
</span><span>
and

y coordinate : cos(90-teta)= y/r
so y=r*cos(90-teta)
</span><span>
if teta is 29 degrees
y=r*cos(61)
and
x = r * cos(29)</span>

4 0

2 years ago

draw the graph of linear equation 5y = 3x + 18 on a cartesian plane. From the graph check weather (-2,4) is the solution of the

SVEN [57.7K]

Answer:

The point (-2, 4) is not a solution of the linear equation, 5·y = 3·x + 18

Please find attached the required graph of the linear equation 5·y = 3·x + 18 written in the form y = 3/5·x + 18/5

Step-by-step explanation:

The given equation is 5·y = 3·x + 18, from which we have;

y = 3/5·x + 18/5

To draw the graph, we generate for vales of y corresponding to values of x as follows;

x, y

-6, 0

-5, 0.6

-4, 1.2

-3, 1.8

-2, 2.4

-1, 3

0, 3.6

1, 4.2

2, 4.8

3, 5.4

4, 6

5, 6.6

6, 7.2

7, 7.8

8, 8.4

9, 9

10, 9.6

11, 10.2

12, 10.8

13, 11.4

14, 12

15, 12.6

16, 13.2

Therefore, when y = 0, x = -6, when x = 0, y = 3.6, when x = -2, y = 2.4, when y = 4, x = -2, x = 6

Therefore, the point (-2, 4) is not a solution of the linear equation, 5·y = 3·x + 18

5 0

1 year ago