All categories

2 years ago

Lizettita I’m trying to find y help

Mathematics

1 answer:

faust18 [17]2 years ago

4 0

Hiii so I found u Emily

You might be interested in

A leprechaun places a magic penny under a girls pillow. The next night there are 2 magic pennies under her pillow. The following

kiruha [24]

Answer:

After 47 days she will have more than 90 trillion pennies.

Step-by-step explanation:

At the beginning there was 1 penny. At the second day the amount of pennies under the pillow became 2.

The amount of pennies doubled each day. So the series is,

$1,2,4,8,16,32,.....$

This series is in geometric progression.

As the pennies from each of the previous days are not being stored away until more pennies magically appear so the sum of series will be,

$S_n=\dfrac{a(r^n-1)}{r-1}$

where,

a = initial term = 1,

r = common ratio = 2,

As we have find the number of days that would elapse before she has a total of more than 90 trillion, so

$\Rightarrow 90\times 10^{12}\le \dfrac{1(2^n-1)}{2-1}$

$\Rightarrow 90\times 10^{12}\le \dfrac{2^n-1}{1}$

$\Rightarrow 90\times 10^{12}\le 2^n-1$

$\Rightarrow 2^n\ge 90\times 10^{12}+1$

$\Rightarrow \log 2^n\ge \log (90\times 10^{12}+1)$

$\Rightarrow n\times \log 2\ge \log (90\times 10^{12}+1)$

$\Rightarrow n \ge \dfrac{\log (90\times 10^{12}+1)}{\log 2}$

$\Rightarrow n \ge 46.4$

$\Rightarrow n\approx 47$

8 0

2 years ago

The probability of Jane wins a game is 7/10. Jane plays a game 50 times. Find the number of times she is expected to win the gam

viktelen [127]

Answer:

35 times

Step-by-step explanation:

7/10 * 50 = 35

3 0

2 years ago

Jen wants to buy a dress that originally had the price of $33, but now it is on sale 10% off. How much will Jen pay for the dr

valentinak56 [21]

Answer:

$29.70

Step-by-step explanation:

1. First, we have to find how much 10% of 33 is!

$\frac{10}{100} * 33$
$\frac{330}{100}$
$3.3$

2. Okay, now that we know 3.3 is 10% of 33, we need to subtract 3.3 from 33 to get the amount Jen will pay for the dress.

$33 - 3.3$
$29.7$

Therefore, Jen will pay $29.70 for the dress.

8 0

2 years ago

3. Find the mZNPI. Exterior angle of triangles

IRINA_888 [86]

Answer:

Step-by-step explanation:

180-143=37

NPI=180-37

NPI=143°

4 0

2 years ago

10 m-1n-5 , for m = 10 and n= -2

trasher [3.6K]

Answer:

da answer of da number iz 17

3 0

2 years ago