Answer:
20 and 3/7
Step-by-step explanation:
Answer:
distributive property
Step-by-step explanation:
2(a+5)
2 is being distributed
Answer:
x = 9
Step-by-step explanation:
set a proportion: 8/12 = 6/x => 8x = 72 => x = 9
9514 1404 393
Answer:
-31/15
Step-by-step explanation:
Put the numbers in the expression and do the arithmetic.

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Your graphing calculator can probably help with this.
Purple = 1/5 of the colors
5 colors per tray, 20 trays = 5 * 20 = 100 colors
1/5 * 100 = 100/5 = 20
20 colors are purple
20/100 = 1/5
1/5