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Lilit [14]
2 years ago
13

Please help me on this....

Mathematics
1 answer:
Kruka [31]2 years ago
5 0

Answer:

I believe it is C

Step-by-step explanation:

because in order to find out how much he has left to read you have to find out how much he has read.

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Jessica is selling books during the summer to earn money for college. She
faltersainse [42]
It’s c I just took the test and got a hundred
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2 years ago
On the first math test, Keiko answered 19 out of 20 correct. On which test did she get a better grade? Write a ratio in faction
frosja888 [35]
The fraction for is 19/20
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2 years ago
Read 2 more answers
The world population is estimated to be 7.8 billion in 2020, and growing at an instantaneous rate of 1.05%. (a) Estimate the pop
REY [17]

Answer:

Population in 2100 is 17.99 billion.

Step-by-step explanation:

The population of the world in 2020  = 7.8 billion.

The growth rate = 1.05%

Now find the population after 2100. Use the below formula to find the population.

Population in 2100 = Population of 2020 (1 + growth rate)^n

Population in 2100 = 7.8 (1 + 0.0105)^80

Population in 2100 = 17.99 billions.

Now, find the growth rate in 2100.

dN/dt = [r N (K – N) ] / K

r = Malthusian parameter

K = carrying capacity.

Now divide both sides by K, now x = N/K then do the differential equation.

dx/dt = r x ( 1- x)

Now integrate, x(t) = 1/ [ 1 + (1/x – 1) c^-rt

From the first equation = dN/dt = (13 – 7.8) / 80 = (r × 7.8×(13 – 7.8) / 12

0.065 = (r × 7.8× 5.2) / 12

0.065 = r × 3.38

r = 1.92%

3 0
3 years ago
The Westside Bakery uses 310 pounds of flour to make 1,000 loaves of bread. Each loaf
DanielleElmas [232]

Answer:

310 / 1000 = 0.31 pounds

Step-by-step explanation:

When dividing by a number that is 1 less 0 than how many digits the number has, we can move the decimal point the number of times zero is repeated at the end of the number.

1000 has 3 zeroes, so we move the decimal point 3 moves to the left.

So, we do this:

After 0 moves: 310

After 1 move: 31.0

After 2 moves: 3.10

After 3 moves = 0.310

0.310 is the same as 0.31

Therefore, 0.31 pounds of flour are in each loaf.

7 0
2 years ago
Ratiearbiteracy
ipn [44]
Explanation

Sorry but You gone have to higher the price for this, this is a big question.
5 0
3 years ago
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