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son4ous [18]
3 years ago
5

Divide 33 in the ratio 3:8

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
8 0

Answer:

9 and 24

Step-by-step explanation:

Recall that for a given number A and the given ratio x : y, the two parts having the ratio x : y is (xA) / (x + y) and (yA) / (x + y).

Given A = 33, x = 3, y = 8,

  • (xA) / (x + y) = (3*33) / (11)
  •                    = 99/11
  •                    = 9

And,

  • (yA) / (x + y) = (8*33) / (11)
  •                    =  264/11
  •                    = 24

Hence, the parts are 9 and 24 respectively.

White raven [17]3 years ago
4 0

Answer: 9:24

Step-by-step explanation: 9:24= 3:8 (using multiples of 3) and add up 24+9=33

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follows are the solution to this question:

Step-by-step explanation:

Please find the correct question in the attached file:

The formula for calculating the Confidence interval of proportion:

\to CI=\hat{p} \pm Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\\to  \hat{p}=\frac{\text{lower limit +upper limit}}{2}\\

      =\frac{0.48+0.60}{2}\\\\=\frac{1.08}{2}\\\\=0.54

The number of learners with access to working at home on a computer:

= 0.54 \times 300 \\\\=162

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upper limit = 0.60

\to margin \ error = \frac{\text{upper limit - lower limit}}{2}\\

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5 0
3 years ago
Please help me please!!!!!!!
Alex787 [66]
The answer is B) 60 

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6 0
4 years ago
Sonia earned $2,100 at her uncle's orchard. if she worked for 70 weeks and earned the same amount of money each week, how much d
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Answer:

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Step-by-step explanation:

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2 years ago
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lbvjy [14]

Answer:

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