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2 years ago

Assuming the world population growth rate is 1% and the current population is about 7 billion, next year the population will be:

1 answer:

4 0

Assuming the world population growth rate is 1% and the current population is about 7 billion, next year the population will be 7.01 billion.

To calculate the percentage increase rate, use the fundamental increase charge formulation: subtract the original from the brand new cost and divide the results by way of the original cost. to show that right into a percent boom, multiply the results by 100.

The population of a given area is described as the range of humans generally residing in that vicinity, measured on 1 January in a given 12 months. The supply can be the most latest population census.

Learn more about population growth here: brainly.com/question/1437549

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Using the slope formula, find the slope of the line through the given points. (6,4) and (1,9)

hodyreva [135]

Answer:

-1

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(9 - 4) / (1 - 6)

5 / -5

= -1

So, the slope is -1

4 0

3 years ago

A ticket to the fair initially costs $10. The price is increased by 15%. Then, the price is decreased by 25% (from the already i

Fantom [35]

Increased price = $10 + $10×15% = $11.50

decreased price = $11.50 - $11.5×25% = 8.625

7 0

4 years ago

A line is perpendicular to y = -x + 1

frozen [14]

Answer: The equation of the perpendicular line intersects the point (-5,1) is y=x+6[/tex]

Step-by-step explanation:

step1:-

The standard form of slope - intercept form y=m x+c

Here m is called slope of the given line

C is called the y- intercept of the given line

Given equation of the straight line y=-x+1

comparing the slope - intercept form y=m x+c

here m= -1 and c=1

step2:-

The equation of the perpendicular line is

$y-{[y_{1}$ } =\frac{-1}{m} (x-x_{1} )[/tex]

substitute m = -1 and c =1 values in equation

$y-1 =\frac{-1}{-1} (x-(-5 )$

$y-1 ={1} (x-(-5 )$

$y=1+x+5\\y=x+6$

step3:- The equation of the perpendicular line intersects the point (-5,1) is

y=x+6[/tex]

conclusion:-

The equation of the perpendicular line is

y=x+6[/tex]

4 0

3 years ago

The length of one leg of a right triangle is 21 ft and the length of the hypotenuse is 29 what's the length of the other leg

lisabon 2012 [21]

You need to use the steps of a^2+b^2=c^2
A and B are the legs. C is the hypotenuse.

If we follow that through, we find the answer is 20.

7 0

3 years ago

The table shows the weight gain of a kitten over a

stepan [7]

Answer:

The rate of change of the weight of kitten A is greater than the rate of change of the weight of kitten B

Step-by-step explanation:

The rate of change of the linear relationship is the slope of the line which represent this relationship

The rule of the slope is m = $\frac{y2-y1}{x2-x1}$ , where (x1, y1) and (x2, y2) are 2 points on the line

∵ The table shows the weight gain of kitten A

→ Choose two points from the table to find the slope

∵ Points (0, 3) and (1, 7) are two points in the table

∴ x1 = 0 and y1 = 3

∴ x2 = 1 and y2 = 7

→ Substitute them in the rule of the slope above

∵ m = $\frac{7-3}{1-0}$ = $\frac{4}{1}$ = 4

∵ The slope is the rate of change

∴ The rate of change of the weight of kitten A is 4 oz/week

∵ The graph shows the weight gain of kitten B

→ Choose two points on the line to find the slope

∵ Points (0, 4) and (2, 10) lies on the line

∴ x1 = 0 and y1 = 4

∴ x2 = 2 and y2 = 10

→ Substitute them in the rule of the slope above

∵ m = $\frac{10-4}{2-0}$ = $\frac{6}{2}$ = 3

∵ The slope is the rate of change

∴ The rate of change of the weight of kitten B is 3 oz/week

→ By comparing the two rates

∵ The rate of change of kitten A is 4 oz per week

∵ The rate of change of kitten B is 3 oz per week

∴ The rate of change of the weight of kitten A is greater than

the rate of change of the weight of kitten B

7 0

3 years ago