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3 years ago

7

a teacher awarded 50 marks to his least student in a class test. How many marks was awarded to the best student if he was 40% be

tter

1 answer:

LenaWriter [7]3 years ago

4 0

Answer:

90 marks per that student

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Solve for x.<br> (x - 12)<br> 2x<br> 51

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Step-by-step explanation:

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Solve for x in the equation:log6-2logx=1.4

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Answer:

x = (√6)/10^0.7 ≈ 0.488737

Step-by-step explanation:

It can work reasonably well to take antilogs first.

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2 years ago

Calculate the volume of the pyramid above. <br> V = ? m3

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3 years ago

20 years ago, father's age was 5 times his son's age. Now his age is 10 years more than twice his son's present age. Find their

Montano1993 [528]

Step-by-step explanation:

x = father's age now

y = son's age now

x = 2y + 10

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using the first in the second equation :

2y + 10 - 20 = 5y - 100

-10 = 3y - 100

90 = 3y

y = 30

x = 2y + 10 = 2×30 + 10 = 60 + 10 = 70

the father is now 70 years old, the son now 30 years old.

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2 years ago