All categories

3 years ago

The world’s population is currently estimated at 7,125,000,000. What is this to the nearest billion? billion

Mathematics

2 answers:

Oksana_A [137]3 years ago

8 0

Answer:

7,000,000,000

Step-by-step explanation:

since the closest number is less than 5 (1<5) you round down making the nearest billion 7

xz_007 [3.2K]3 years ago

8 0

Answer:

7,000,000,000 OR 7 Billion

Step-by-step explanation:

Since the 1 is millions place and its less than 5, you need to round down meaning that 7,125,000,00 rounded to the nearest billion is 7 billion.

You might be interested in

The base of a square fountain has an area of 144 ft2. What length of fence is needed to create a border for the fountain?

PtichkaEL [24]

Answer:

Step-by-step explanation:

Area of a square = length of side squared

square root of 144 is 12

four equal sides in a square

12 * 4 = 48

3 0

3 years ago

Read 2 more answers

Correct answer will have the brainliest answer look at the image pls.

Licemer1 [7]

Answer:

2nd option

Step-by-step explanation:

A=wl=2.75·2.25=6.1875

2 1/4= 2.25

2 3/4= 2.75

4 0

2 years ago

A tank with a capacity of 100 gallons initially contains 50 gallons of water with 10 pounds of salt in solution. fresh water ent

steposvetlana [31]

Let $A(t)$ be the amount of salt (in pounds) in the tank at time $t$ . We're given that $A(0)=10\text{ lb}$ .

The rate at which the amount of salt in the tank changes is given by the ODE

$A'(t)=\dfrac{2\text{ gal}}{1\text{ min}}\cdot\dfrac{0\text{ lb}}{1\text{ gal}}-\dfrac{1\text{ gal}}{1\text{ min}}\cdot\dfrac{A(t)\text{ lb}}{50+(2-1)t\text{ gal}}$

$A'(t)+\dfrac{A(t)}{50+t}=0$

$(50+t)A'(t)+A(t)=0$

$\bigg((50+t)A(t)\bigg)'=0$

$(50+t)A(t)=C$

$A(t)=\dfrac C{50+t}$

Given that $A(0)=10$ , we find that

$10=\dfrac C{50+0}\implies C=500$

so that the amount of salt in the tank is described by

$A(t)=\dfrac{500}{50+t}$

The tank will be filled when $50+t=100$ , or after $t=50$ minutes. At this time, the amount of salt in the tank is

$A(50)=\dfrac{500}{50+50}=5\text{ lb}$

7 0

3 years ago

Just like last time, points A, B, and C are collinear where A is between B and C. AB

kicyunya [14]

Not sure to be honest sorry very sorry

6 0

3 years ago

2x+3y=7 -3x-5y=-13 solve using any method of your choice

marissa [1.9K]

The value of x is -4 and the value of y is 5

7 0

3 years ago