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3 years ago

When debby's 3ds is fully charged it last for 8 hours. if she only charged it 3/5 full how long did it last her?

Mathematics

2 answers:

Luba_88 [7]3 years ago

7 0

8*3/5=4.8 hours

Hope that helps

Anuta_ua [19.1K]3 years ago

4 0

It will last her 4.8 hours (8×3/5)

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It's 4:3 because if its 24:18 you can break it down by dividing 6 from both of them to get 4:3

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3 years ago

In a sample of 1000 randomly, selected consumers who had opportunities to send in a rebate claim form after purchasing a product

Alexxx [7]

Answer: $=(0.2232,0.2768)$

Step-by-step explanation:

The confidence interval for population proportion is given by :-

$p\ \pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}$

Given : Sample size : $n=1000$

The proportion of people selected consumers who had opportunities to send in a rebate claim form after purchasing a product said they never did so = $\dfrac{250}{1000}=0.25$

Significance level : $1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Now, the 95% confidence Interval for the true proportion of such consumers who never apply for a rebate will be :-

$0.25\ \pm (1.96)\sqrt{\dfrac{0.25(1-0.25)}{1000}}\\\\\approx0.25\pm0.0268\\\\=(0.2232,\ 0.2768)$

Hence, a confidence Interval for the true proportion of such consumers who never apply for a rebate .

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3 years ago

Alexander earns the same amount of money each month. Alexander's loan payment is 225 of his monthly income. Alexander pays a tot

mezya [45]

Answer:

31,500

Step-by-step explanation:

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3 years ago

£360 is shared between Abby, ben, chloe and denesh. the ratio of the amount abby gets to the amount that ben gets is 2:7. chloe

Gwar [14]

Answer:

$210$ £

Step-by-step explanation:

Let amount that abby gets $=x$

Given that $\frac{Amount\ of\ abby}{Amount\ of\ Ben} =\frac{2}{7}$

$Amount\ of\ ben=\frac{7}{2}\times Amount\ of\ abby\\ =\frac{7}{2}\ x$

Amount of chole + amount of Danesh $=1.5\times$ of abby

$=1.5 \ x$

$x +\frac{7}{2} \ x + 1.5 \ x =360\\\\6x=360\\\\x=\frac{360}{6}\\\\x=60$

$Amount\ of\ Ben =\frac{7}{2}\ x = \frac{7}{2} \times 60\\\\=7\times 30\\\\=210$

6 0

3 years ago

Work out the area of this circle.

Troyanec [42]

Answer:

36π mm²

Step-by-step explanation:

Formula: πr²

r=radius

r=6

π6²=36π

6 0

3 years ago