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Alik [6]
3 years ago
12

Araceli uses 9.6 pints of blue paint and white paint to paint her bedroom walls. Three fourths of this amount is blue paint , an

d the rest is white the rest is white. How much white paint did she uses
Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0

Answer:

2.4 pints

Step-by-step explanation:

Araceli uses 9.6 pints of blue paint and white paints, that means the total volume of paint is 9.6 pints

If Three fourths of this amount is blue paint ,

Then  \frac{3}{4} X 9.6=7.2 pints

7.2 pints of blue paint was used.

We want to find out how much white paint was used by Araceli

Volume of Blue Paint+Volume of White Paint=Total Volume of Paint

7.2+Volume of White Paint=9.6

Volume of White Paint=9.6-7.2=2.4 pints

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kozerog [31]

Answer:

\sqrt{3 \times 2 {?}^{2} }  =   \sqrt{12}  = 3.46

3 0
3 years ago
9. Gold miners in Alaska have found, on average, 12 ounces of gold per 1000 tons of dirt excavated with a standard deviation of
netineya [11]

Answer:

9.18% probability the miners find more than 16 ounces of gold in the next 1000 tons of dirt excavated

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 12, \sigma = 3

What is the probability the miners find more than 16 ounces of gold in the next 1000 tons of dirt excavated?

This is 1 subtracted by the pvalue of Z when X = 16. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{16 - 12}{3}

Z = 1.33

Z = 1.33 has a pvalue of 0.9082

1 - 0.9082 = 0.0918

9.18% probability the miners find more than 16 ounces of gold in the next 1000 tons of dirt excavated

5 0
2 years ago
What is the answer for x²+9x-10
Alexxandr [17]

(x-1) (x + 10)

Step-by-step explanation:

I think it's this but I'm not sure if I did it right

8 0
2 years ago
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Write 9/10 as a division
Arte-miy333 [17]

Answer:

9/10 can be written as 9÷10

Step-by-step explanation:

which Will 0.9

7 0
3 years ago
Read 2 more answers
Wats the distance between -11 &amp; -2
Elan Coil [88]
The expression is -11-(-2)

Two negatives equals to a positive so,

-11+2
=-(11-2)
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The distance between -11 & -2 is -9

Hope that helped :)
4 0
3 years ago
Read 2 more answers
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