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3 years ago

Each day tarquin ate 25% of his chocolate.After 4 days he had 1620 chocolate left.How many chocolates did u initially have?

Mathematics

2 answers:

Leya [2.2K]3 years ago

7 0

Answer: 414720

Step-by-step explanation: Just multiply by 4, 4 times lol

Pani-rosa [81]3 years ago

6 0

Answer:

3240

Step-by-step explanation:

25% of 1620 is 405

Initial chocolate number is multiple 405 by 4 then add into 1620

405 *4 =1620

1620+1620 =3240

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kolbaska11 [484]

Given:
Sample proportion = 85% = 0.85.
Confidence level (CL) = 90%.
Confidence interval (CI) $\hat{p} \pm z^{*} \sqrt{ \frac{\hat{p}(1-\hat{p})}{n} } \\ where \\ n=sample\, size \\ z^{*}=1.645 \, at \, 90\% \, CL$

We want the confidence interval to be 5% or 0.05. Therefore
$0.85 - 1.645 \sqrt{ \frac{0.85(1-0.85)}{n} }=0.05 \\ 0.85 - \frac{0.5874}{ \sqrt{n} } =0.05 \\ \frac{0.5874}{ \sqrt{n} }=0.8 \\ \sqrt{n} = .7342 \\ n=0.54$

Because this number is less than 1, a default sample size of 30 (for the normal distribution) is recommended.

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3 0

3 years ago

Can anyone help me with this question Please .

grandymaker [24]

Answer:

Step-by-step explanation:

8 0

3 years ago

What is the average value of latex: y=\tan\left(\frac{x^2}{9}\right) y = tan ⁡ ( x 2 9 ) on the closed interval [1.25, 2]?

german

For this case we have the following function:
$f(x) = tan(\frac{x^2}{9})$
The average rate of change is given by:
$AVR = \frac{f(x2) - f(x1)}{x2- x1}$
Evaluating the function for the given interval we have:
For x = 1.25:
$f(1.25) = tan(\frac{1.25^2}{9})$
$f(1.25) = 0.18$
For x = 2:
$f(2) = tan(\frac{2^2}{9})$
$f(2) = 0.48$
Then, replacing values we have:
$AVR = \frac{0.48 - 0.18}{2 - 1.25}$
$AVR = 0.4$
Answer:
the average value of on the closed interval [1.25, 2] is:
$AVR = 0.4$

3 0

3 years ago

25 POINTS!! PLEASE HELP!

Anvisha [2.4K]

Answer:

The length of TQ is 14.

Step-by-step explanation:

The length of SV and VS are the same.

4x - 1 = 15

4x = 16

x = 4

Similarly, the length of TS and TQ are the same.

3x + 2 = 3(4) + 12 = 14

6 0

2 years ago

3 = x/12 - 4 what is x

alexgriva [62]

Answer:

x=84

Step-by-step explanation:

Add 4 on both sides

3=x/12-4

7=x/12

Multiply both sides by 12

(12)7=x/12(12)

84=x

Hope this helps! :)

3 0

3 years ago

Read 2 more answers

Each day tarquin ate 25% of his chocolate.After 4 days he had 1620 chocolate left.How many chocolates did u initially have?​

Each day tarquin ate 25% of his chocolate.After 4 days he had 1620 chocolate left.How many chocolates did u initially have?