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mariarad [96]
2 years ago
11

PLEASE HURRY!!!! 20 POINTS simplify the following expression by combining like terms: 4x + 16y - x + 3y​

Mathematics
1 answer:
Masja [62]2 years ago
3 0

Answer:

3x + 19y is the answer

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Mrs. Magee's farm covers 14 1/3 acres. She grows corn on 5/8 of her farm. On how many acres of land does Mrs. Magee grow corn?
Aleonysh [2.5K]
C. 8 23/24. One way you can solve this is by dividing 14 1/3 by 8, because it is the denominator of 5/8, then multiplying the quotient by 5, because it is the numerator of 5/8. (14 1/3 / 8) x 5 = 8 23/24
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Factor the expression given below. Write each factor as a polynomial in
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Answer:

Step-by-step explanation:

This is the sum of perfect cubes. There is a pattern that can be followed in order to get it factored properly. First let's figure out why this is in fact a sum of perfect cubes and how we can recognize it as such.

343 is a perfect cube. I can figure that out by going to my calculator and starting to raise each number, in order, to the third power. 1-cubed is 1, 2-cubed is 8, 3-cubed is 27, 4-cubed is 64, 5-cubed is 125, 6-cubed is 216, 7-cubed is 343. In doing that, not only did I determine that 343 is a perfect cube, but I also found that 216 is a perfect cube as well. Obviously, x-cubed and y-cubed are also both perfect cubes. The pattern is

(ax + by)(a^2x^2 - abxy + b^2y^2) where a is the cubed root of 343 and b is the cubed root of 216. a = 7, b = 6. Now we fill in the formula:

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2 years ago
For a party, Jon is making sandwiches that are 1 1/4 feet long. He buys 7/8 pound of ham and 1 3/8 pounds of turkey for the sand
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Answer:

3/8 pounds of meat

Step-by-step explanation:

7/8 pounds of ham

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1 3/8 pounds of turkey

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Pounds of meat

P_meat = 0.875 pounds of ham + 1.375 pounds of turkey

P_meat  = 2.25 pounds of meat

Jon puts 1/6 of the meat on each sandwich

P_meat/6 = 3/8 pounds = 0.375 pounds

8 0
3 years ago
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