Welcome to H3 Maths

Blog Support for Growing Mathematicians

Posts tagged with finding average speed

Back to the Ski Slopes

June16

Yes, we are back on the mountain and trying to work out the speed of our skiers. We remember (from a Math lesson a long time ago) that Speed = Distance/Time. It was given to us in a triangle, something like this: To use this triangle, simply put your finger over the letter you are […]

by posted under Uncategorized | tagged under , ,  |  Comments Off on Back to the Ski Slopes

Post Support

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

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)?]

H3 Viewers



Skip to toolbar