HELP PLEASE SOMEONE

Businesses deposit large sums of money into bank accounts. Imagine an account with 10 million

Nikitich [7]

Answer:

The account will earn in one year the amount of $10,512,000

Step-by-step explanation:

Given as :

The principal in the account = $10,000,000

The rate of interest = 5.12% at simple interest

The time period = 1 years

Let The amount that account earn after 1 year = $A

<u>From Simple interest method</u>

Simple interest = S.I = $\dfrac{\textrm principal\times \textrm rate\times \textrm time}{100}$

or, S.I = $\dfrac{\textrm 10,000,000\times \textrm 5.12\times \textrm 1}{100}$

or, S.I = $\dfrac{51200000}{100}$

or, S.I = $512,000

So, Simple interest = S.I = $512,000

Now, Amount = Principal + Interest

I.e A = $10,000,000 + $512,000

Or, A = $10,512,000

So, Amount = A = $10,512,000

Hence The account will earn in one year the amount of $10,512,000 Answer

8 0

3 years ago

Q2. In a camp food was enough for 400 people for 23 days. If 60 more people joined the camp, find the number of days the food wi

victus00 [196]

Answer:

Q2)

We have food for 400 people, and it will last for 23 days.

Then we have an inverse relation, where the number of days decreases as the number of people increases, this means that we have a relationship like:

23 days = K/400 people.

Then we get:

(23 days)*(400 people) = K = 9200 days*people.

Now if we increase the number of people by 60, we get.

people = 460

Then the number of days that this will last is:

D = (9200 days*people)/460 people = 20 days.

The food will last for 20 days.

Q3) We have a proportional relationship (y = k*x) such that y = 40 when x = 200, then we get:

40 = k*200

With this, we can find the value of k

40/200 = k = 0.2

Then the proportional relationship is:

y = 0.2*x

a) We need to replace x by 15.

y = 0.2*15 = 3

y = 3

b) We need to replace y by 8.

8 = 0.2*x

8/0.2 = x = 40

x = 40

Q3) y is inversely proportional to x (y = k/x), and y = 8 when x = 30.

Then we get:

8 = k/30

Then the value of k is:

8*30 = k = 240

then the relationship is:

y = 240/x

a) we need to replace x by 4

y = 240/4 = 60

y = 60

b) we need to replace y by 360

360 = 240/x

360*x = 240

x = 240/360 = 0.666...

x = 0.666...

8 0

3 years ago

Gabby has 5 weeks to read a novel. She reads 15 pages of a novel in 3/7 week. At this rate, will gabby read the 200-page book in

docker41 [41]

15 pages - 3/7 of a week
200 pages - x weeks

Cross multiply:
$15x=200 \times \frac{3}{7} \\
15x=\frac{600}{7} \\
x=\frac{600}{7} \times \frac{1}{15} \\ x=\frac{40}{7}\\
x=5.71...>5$

She won't read the book in time.

8 0

3 years ago

The 1987 explosion at a nuclear lab sent about 1000 kilograms of a radioactive element into the atmosphere. the function f left

Ksju [112]

The equation tells you the half-life is 30 years. In 90 years, 3 half-lives will have passed, so the decay will be to (1/2)^3 = 1/8 its original level. Radiation will not have decayed to 1/10 its original level in 80 years. The area will be unsafe in 2067.

f(x) = 1000·0.5^(x/30)

f(80) = 1000·0.5^(80/30) ≈ 157.5 . . . . kilograms

7 0

3 years ago

A 7-pack of jump ropes costs $16.31. What is the unit price?

Wewaii [24]

Answer:

$2.33 per pack

Step-by-step explanation:

$16.31÷7=2.33

4 0

3 years ago

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