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VARVARA [1.3K]
3 years ago
8

the number of Roberto's baseball cards is 3/4 the number of David's cards. If Roberto gives 1/2 of his cards to David, what will

be the ratio of Roberto's cards to David's cards?
Mathematics
1 answer:
Nataliya [291]3 years ago
3 0

Answer:

The ratio between Roberto and David is 3:11

Step-by-step explanation:

If Roberto were to have 18 cards when we start, then David would have 24. Roberto has 3/4 the amount that David has. Then Roberto gives half of his cards (9) to David. Roberto now has 9 cards and David has 33.

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(x4 − 9x + 5x7) + (5x − 10 + 3x4 − 2x2)
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Answer:

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x^4 - 9·x + 5·x^7 + 5·x - 10 + 3·x^4 - 2·x^2

5·x^7 + x^4 + 3·x^4 - 2·x^2 - 9·x + 5·x - 10

5·x^7 + 4·x^4 - 2·x^2 - 4·x - 10

4 0
3 years ago
a construction company charges $15 per hour for debris removal , plus a one -time fee for the use of the trash dumpster.the tota
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Let h be the numbers of hours, f be the one-time fee and c the cost charged. The equation is

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7 0
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Answer:

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Step-by-step explanation:

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