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4 years ago

Please help! I'm very confused. 20 points.

Mathematics

1 answer:

malfutka [58]4 years ago

8 0

1) Use the distributive property to eliminate parentheses.
.. 3(6x) -3(5) -7(3x) -7(10) = 0
.. 18x -15 -21x -70 = 0 . . . . . . finish multiplying terms
.. -3x -85 = 0 . . . . . . . . . . . . . collect like terms
.. -85 = 3x . . . . . . . . . . . . . . . .add 3x
.. -85/3 = x . . . . . . . . . . . . . . .divide by 3
.. -28 1/3 = x . . . . . . . . . . . . . write as mixed number

2) 5 -(6 +9x) = 9 -(4x -1)
.. 5 -6 -9x = 9 -4x +1 . . . . . eliminate parentheses using the distributive property
.. -1 -9x = 10 -4x . . . . . . . . . collect like terms
.. -1 = 10 +5x . . . . . . . . . . . . add 9x
.. -11 = 5x . . . . . . . . . . . . . . . subtract 10
.. -11/5 = x . . . . . . . . . . . . . . divide by 5
.. -2 1/5 = x . . . . . . . . . . . . . write as mixed number

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Answer:

80%

Step-by-step explanation:

Given:

Team D used a recipe that consists of 20 cups of sand, 2 cups of flour, and 3 cups of water.

Question asked:

How does the percent of sand in Team D's recipe compare to that of the other teams ?

Solution:

Team D used a recipe that consists of sand = 20 cups

Team D used a recipe that consists of flour = 2 cups

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Now we will have to find percent of cups of sand out of the total number of cups.

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Therefore, 80% of sand in Team D's recipe compare to that of the other teams.

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