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Posts tagged with Dr Ben Carson

Never say “I can’t”!

July16
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Numbers Again

February1

Illiteracy is being unable to read or write. Someone who is illiterate is not able to make sense of basic text, and they are unable to communicate through writing. You may remember the post about Dr Ben Carson (below). His mother was illiterate but she eventually was helped by the man who’s house she cleaned. […]

Secrets of a successful maths student – part 1

January26

Dr Ben Carson was born in Detroit and brought up by his single mother. When he was young, he was in the bottom of the class. and he struggled in primary school (Grade 1-6), but started to excel in middle school and throughout high school. He graduated with honors from his high school and eventually […]

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NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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