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3 years ago

Write a real world situation for 15x-20<130 (greater than or equal to is the symbol)

Mathematics

1 answer:

sammy [17]3 years ago

6 0

15x<130+20, 15x<150 divided both sides by 15 ,the answer is 10

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In how many year the interest will became equal to the principal is rs.1200 is deposited at the rate of 25% in a bank

mrs_skeptik [129]

Given:

Principal = Rs. 1200

Rate of interest = 25%

To find:

The time in which the interest will became equal to the principal.

Solution:

We have,

$P=1200$

$r=\dfrac{25}{100}$

$r=0.25$

If interest is equal to the principal, then

$Amount=Principal+Interest$

$Amount=1200+1200$

$Amount=2400$

The formula for amount is:

$A=P\left(1+r)^n$

Substituting $A=2400, P=1200, r=0.25$ in the above formula, we get

$2400=1200(1+0.25)^n$

$\dfrac{2400}{1200}=(1.25)^n$

$2=(1.25)^n$

Taking log on both sides, we get

$\log2=\log(1.25)^n$

$\log2=n\log(1.25)$ $[\because \log a^b=b\log a]$

$\dfrac{\log2}{\log(1.25)}=n$

$n\approx 3.11$

Therefore, the interest will became equal to the principal in about 3.11 years.

4 0

3 years ago

1. Is the function linear or nonlinear?

Marrrta [24]

Answer:

non-linear

Step-by-step explanation:

it is nonlinear because if the numbers go up and then down then its not a straight line. therefore its not linear.

4 0

3 years ago

A bag contains 3 red marbles 4 blue marbles and 7 Green marbles if two marbles are drawn out of the bag what is the probability

mr_godi [17]

Answer:

0.368

Step-by-step explanation:

Number of red marbles= 3

Number of blue marbles= 4

Number of green marbles= 7

Total number of marbles= 3+4+7= 14

Let the first ball is taken out to be red

P(R)= $\frac{3}{14}$

than again a second ball is drawn, number of balls left= 14-1=13

Number of red= 2

P(R)= $\frac{2}{13}$

Total probability= $\frac{3}{14}$ + $\frac{2}{13}$

Total probability= 0.368

Hence, the correct answer is 0.368

3 0

3 years ago

Henry draws an obtuse triangle how many obtuse angles does Henry's triangle have?

drek231 [11]

it would only have 1 obtuse angle

4 0

3 years ago

Read 2 more answers

Help me with questions 8 and 9 for 20 POINTS!!!!!!

rewona [7]

Answer:

hehejejejjenene

Step-by-step explanation:

sjjshenebjsjsjwjjejenene .....

hope it helps

5 0

3 years ago