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RoseWind [281]
2 years ago
15

Q1. 12.5g of medicine cost 1,075 naira. What is the cost of 1g of medicine. Q2. What is the total pay for someone who works 42 h

ours and gets 645 naira per hour
Mathematics
1 answer:
Natalija [7]2 years ago
3 0

Step-by-step explanation:

Q1. 1,075÷12.5 =8

So Therefore 1g of medicine cost 8 naira

Q2.645÷42=15.3

so therefore 1 hour cost 15.3 naira

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marishachu [46]

Answer:

(0.2278, 0.3322)

Step-by-step explanation:

Given that out of 400 people 112 agree and 288 disagree

Proportion of people agreeing = \frac{112}{400} =0.28

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For confidence interval 90% we have critical value as

1.645

Margin of error =1.645*SE

=1.645(0.03175)\\= 0.0522

Confidence interval = (0.28-0.0522, 0.28+0.0522)\\= (0.2278, 0.3322)

3 0
3 years ago
Find the missing length of the following trapezoid
Schach [20]

Answer:

1) The length of DC is 20.

2) The length of PS is 17.

Step-by-step explanation:

1) If DR = RE and CS = SB, then we can use the following proportionality ratio:

\frac{DE}{DR} = \frac{32 - x}{26 - x} (1)

Where x is the length of segment \overline{CD}.

If DE = 2\cdot DR, then the value of x is:

2 = \frac{32-x}{26-x}

52 - 2\cdot x = 32 - x

20 = x

The length of DC is 20.

2) If QV = VP and RW = WS, then we can use the following proportionality ratio:

\frac{QP}{QV} =  \frac{x-7}{12-7} (2)

Where x is the length of segment \overline{PS}.

If QP = 2\cdot QV, then the value of x is:

2 = \frac{x-7}{5}

10 = x-7

x = 17

The length of PS is 17.

4 0
3 years ago
30 tens equals how many hundreds
Step2247 [10]
3 hundreds
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Answer:

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3 years ago
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Vsevolod [243]
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3 years ago
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