2 years ago

Alex got 21 out of 26 on a maths test and Miall got 23 out of 30 for a science test. who got the highest percentage?

1 answer:

4 0

A 21 out of 26 is equal to about an 80%
A 23 out of 30 is equal to about 73%
So Alex scored a higher grade on the science test

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crimeas [40]

Answer:

x = (23 + √ 497 / 8) , (23 − √ 497 /8)

x=5.66168710

Step-by-step explanation:

im too lazy. use math-way

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2 years ago

saul85 [17]

Answer:

divide the least common denominator by the original denominator

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Andrew [12]

If you want the answer youse a calculator or do 21 divided by 38

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Zigmanuir [339]

X/2 >= -4
x >= -4 * 2
x >= -8

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larisa86 [58]

Answer:

a) 2048

b)164

c)54

d) 11

Step-by-step explanation:

a) A coin has two faces.

Outcome possible =2^11= 2048

b) 8 heads possible outcome = 11!/8!3! = 3971688/241/920= 164 ways

c)2 heads outcome= 11!/2!8!= 39716800/725760=54

d) 7 heads= 11!/7!6! =39716800/3628800 = 11

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2 years ago