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3 years ago

A sum of money at simple interest doubles itself in 10 years.Find the rate percent per annum

Mathematics

1 answer:

Otrada [13]3 years ago

5 0

Answer:

10%

Explanation :

To solve the problem, we should know the definition of annual simple interest. We have,

Simple Interest (I) = P×R×t100

Where, P= principal amount

R = simple interest annual rate

t = time period of the annual simple interest

Here, we have R = 10% and have to calculate t for the sum of the money (that is P) to double.

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A pilot flew a 400-mile flight in 2.5 hours flying into the wind. Flying the same rate and with the same wind speed, the return

svetoff [14.1K]

Answer:

40 miles per hour

Step-by-step explanation:

Given that:

Distance = 400 miles

Without tailwind :

Time taken = 2.5 hours

Speed = distance / time

Speed = 400 miles / 2. 5

Speed = 160 miles per hour

With tail wind :

Time taken = 2 hours

Net speed = 160 + x

X. = speed of tail wind

Distance = speed * time

400 = (160 + x) * 2

400 = 320 + 2x

400 - 320 = 2x

80 = 2x

x = 40

Speed of tailwind = 40 miles per hour.

4 0

3 years ago

The polygons are similar but not necessarily drown to scale. What is the value of x?

qaws [65]

Answer: 38

Step-by-step explanation:

Since the polygons are similar, the corresponding sides are all in the same proportions.

x-2/4.5 = 16/2 = 48/6

<u>Solving for x</u>

$\frac{x-2}{4.5}=\frac{48}{6}$

$\frac{x-2}{4.5}=8$

$\frac{4.5\left(x-2\right)}{4.5}=8\cdot \:4.5$

$x-2=36$

$x-2+2=36+2$

$x=38$

Therefore, the value of x is 38

4 0

2 years ago

ASAP HELP RN

Akimi4 [234]

Answer:

Part B: is -60 divided by -10

Part C: is The number of increments is positive.

Part D: is -1 times 60 / -1 times 10

Part E: is Any number divided by itself is 1. In the expression -1 times 60, the -1s in the numerator and the denominator cancel each other out to give the result 60/10, or 6

Part F: is There are 6 increments of -10 feet in -60 feet.

Part G is: copy and paste -10 feet 6 times

Part H: is -60 / 4 increments

Part I: is there is one negative number in the expression, so the solution will be negative. There isn't a -1 in the denominator to cancel out the -1 in the numerator.

Part J: is -60 /4 =-15 Alex’s elevation change in each increment was -15 feet.

Step-by-Step Explaination: I did the test.

6 0

4 years ago

What is range in math

Oxana [17]

Answer :

★<u>Range</u> : Range is the difference of the largest value and the lowest value given in graph in STATICS.

<u>More</u> <u>information</u> :

The formula to find RANGE is :

Range = Maximum value — Minimum value

What is the use of Range :

Range gives us the idea(rough) of the outcome.

<h3>Example :</h3>

Given :

(3,5,12,67,87,13)

Here we can see that the largest value is 87

And the lowest value is 3

Thus,the Range here is ,

= 87 — 3

= 84

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

8 0

3 years ago

Please help me! You have a minimum time of 20 minutes.

baherus [9]

Answer:

(A) $x^{2}+2xy+y^{2}$

Step-by-step explanation:

The given equation is :

$(x+y)(x+y)$

= $(x+y)^{2}$

We need to simplify the given equation, so

Using the identity,

$(a+b)^{2}=a^{2}+2ab+b^{2}$ , we have

$(x+y)(x+y)$ =x^{2}+2xy+y^{2}[/tex]

Which is the required simplified form of the given equation.

Hence, option A is correct.

5 0

3 years ago

A sum of money at simple interest doubles itself in 10 years.Find the rate percent per annum​

A sum of money at simple interest doubles itself in 10 years.Find the rate percent per annum