A 3-tier wedding cake is made using 6.4 kg of mixture. The weights of the tiers are in the ratio of 2 : 5 : 9. What is the weight, in grams, of the smallest tier? (SHOW WORKING)

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

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answer:   rotate 270° clockwise about (7, 1) and reflect across the line x = 7

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because i took test

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

i believe the answers 600m