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serg [7]
3 years ago
13

a painter used 20 drops of red paint and 45 drops of white paint. How many drops of white paint should he add to 12 drops of red

paint
Mathematics
1 answer:
gtnhenbr [62]3 years ago
6 0
The answer would be 27 drops of paint
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It costs you $10 to draw a sample size n=1 and measure the attribute of interest. you have a budget of $1,200
kicyunya [14]

<span>a.       </span>Do you have sufficient funds to estimate the population mean for the attribute of interest with a 95% confidence interval 4 units width? Assume that sd= 12

n= {[(Zalpha/2)^2]*[sd]^2}/ se^2

n= (1.96)^2*(12)^2/ (2)^2

n= 138.297 rounded up to 139

<span>There is not enough funds for this one since you’ll need 139 pieces and it costs 10 a piece, you’ll need 1390.</span>

b.      90% confidence interval

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6 0
3 years ago
Tell me the answer to the question plz​
Sonja [21]

Step-by-step explanation:

(11.99+23.98+9.95)= 45.92

she has to pay = 45.92 - 20/100 (45.92)

= 45.92 - 9.18 = 36.74

so option

about 37 is right

4 0
3 years ago
PLEASE HELP !!!! I DONT KNOW WHAT TO DO!!!!!
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Answer:

-2a if you're Simplifying it and 2\5 if you're going for a decimal

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You buy two packages of almonds. One package is 10.47 kg and the other is 8.23 kg. What is the difference?
fomenos

Answer:

2.04 kg

Step-by-step explanation:

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