Sold 17 tulips and 76 roses. tulips is equal to x and roses are equal to 4x+8. Then multiply by the amount they cost and then tulips are 2x and roses are 20x+40. They add together to get 414. 2x=20x=40=414. Solve. x=17. X is equal to the amount of tulips.
When parentheses are eliminated and the y variable placed first in each term, the expression simplifies to ...
... 15 -7y²x -y³ +y²x +15
Arranging like terms together, we have ...
... -y³ +y²x(-7 +1) +(15 +15)
... -y³ -6y²x +30
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The two different 3rd-degree terms can be expressed in either order. I have chosen to list the term with the largest exponent first. The expression could also be written with the same-degree terms in "lexicographical order", meaning the expression would be written ...
As a decimal 4/15 = 0.2666667 As a decimal 3/10 = 0.3 [talk about close] 3/10 is bigger.
You could take an average to find something between 4/15 and 3/10 1/2(4/15 + 2/10) 1/2(8/30 + 6/30) 1/2(14/30) 1/2(7/15) 7/30 is between the two given numbers..