2 years ago

What percent of 111 is 94?

Mathematics

1 answer:

konstantin123 [22]2 years ago

3 0

Answer:

I’d say 84.68%

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Marina babysits her neighbors' kids once a week and earns $40 each night. She loves coffee so she treats herself three times a w

Marat540 [252]

Answer:

24weeks

Step-by-step explanation:

So if she spends 5$ three times a week she spends 15$ a week

She babysits once a week for 40$

That means that she saves 25$ from babystitting each week

As she already has saved 200$, she only lacks 600$ for the purchase

600$ / (25$/week) = 24 weeks

If she stops buying coffee it will instead only take her 15 weeks to buy a new laptop

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3 years ago

-4(9z -2)<br> hurrryyyyyyyyyyyyyyyyyyyyyyy

Sergio039 [100]

We will use the distributive property. -4 times 9z=-36z -4 times -2=8 so we have -36z+8 as our answer

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3 years ago

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ASHA 777 [7]

The answer is 21, 21 is the value of x

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3 years ago

Three siblings are born on the same date in consecutive years.

Oduvanchick [21]

Answer:

Step-by-step explanation:

15+14+13=42

Hope this helps :)

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3 years ago

A random variable x takes four possible values, 0, 2, a, and b, where a and b are unknown numbers. if pr[x = 0] = 0.2, pr[x=2] =

Alexus [3.1K]

$\displaystyle\sum_{x\in\{0,2,a,b\}}\mathbb P(X=x)=1$
$\mathbb P(X=0)+\mathbb P(X=2)+\mathbb P(X=a)+\mathbb P(X=b)=1$
$0.2+0.4+0.3+\mathbb P(X=b)=1$
$\implies\mathbb P(X=b)=0.1$

$\mathbb E(X)=\displaystyle\sum_{x\in\{0,2,a,b\}}x\mathbb P(X=x)=2.8$
$0\mathbb P(X=0)+2\mathbb P(X=2)+a\mathbb P(X=a)+b\mathbb P(X=b)=2.8$
$0.8+0.3a+0.1b=2.8$
$0.3a+0.1b=2$

$a+b=6\implies0.3a+0.1b=0.2a+0.1(6)=2$
$0.2a+0.6=2\implies0.2a=1.4\implies a=7$

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3 years ago