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Harrizon [31]
3 years ago
14

before you are able to take a bite of your new chocolate bar, a friend comes along and takes 1/4 of the bar. If the original le

ngth of your bar was x write a simplified expression in terms of x for the length of the remaining part of your bar
Mathematics
1 answer:
sukhopar [10]3 years ago
5 0

The bar was x units long.

Your friend took 1/4x

Subtract what your friend took from the original length:

X - 1/4x = 3/4x remaining.

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Marizza181 [45]
Idk main math is pretty hard u know
7 0
3 years ago
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The total number of cats and dogs at the shelteris 125. there are 5 more cats than dogs
juin [17]
If you're looking for the number of dogs (I'm assuming, you didn't specify), all you'd have to do is divide the number by two, then round down to find the number of dogs, then check your answer by adding that number and that number plus 5.

For example, yours would look like 125/6=62.5, and rounding down to 60.

Then check your answer by adding 60 and 65, the number of cats. 60+65=125.

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5 0
3 years ago
insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of
ss7ja [257]

Answer: (13.22\%,\ 19.34\%)

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : \hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628

=16.28\%

Significance level : \alpha= 1-0.95=0.05

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

Confidence level for population proportion:-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= (13.22\%,\ 19.34\%)

7 0
3 years ago
Can someone please help me
Aleks04 [339]
The answer is D. 60/100

In order to get the denominator from 5 to 100, you must multiple it by 20, meaning you also have to do that to the numerator. 3x20=60, therefore, the answer is 60/100
3 0
3 years ago
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lorasvet [3.4K]

Answer:

504 km

Step-by-step explanation:

divide 180 by 15 (because 3 hours is 180 minutes)

after you divide you get 12

then multiply 12 by the 42 kilometers and you get 504

7 0
3 years ago
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