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ratelena [41]
2 years ago
10

Please help me with this math problem who ever does first gets 100 points

Mathematics
2 answers:
umka2103 [35]2 years ago
7 0

Answer:

\displaystyle{ -  \frac{3}{5}  +  \frac{1}{3} }

  • LCM of 5 and 3=15.

So,

\displaystyle \:   \frac{-3 \times 3 + 1 \times 5}{15}

\displaystyle   \frac{-9 + 3}{15}

\displaystyle \frac{-4}{15}

Leona [35]2 years ago
4 0

Answer:

-\frac{4}{15}

Step-by-step explanation:

\frac{-3}{5} +\frac{1}{3}

\frac{-9}{15} +\frac{5}{15}

\frac{-9+5}{15}

\frac{-4}{15}

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Solve the equation by completing the square. -9n^2+79+=-18n
poizon [28]
Hello,
-9n²+79=-18n
==>9n²-18n-79=0
==>9(n²-2n+1-1)-79=0
==>9(n-1)²-88=0
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6 0
3 years ago
Please help me with this​
3241004551 [841]

Answer:

1/4 or 0.25

Step-by-step explanation:

Find the common denominator to fill in the first 2 blanks.

1/2 = <u>2</u>/4

1/4 = <u>1</u>/4

2/4 - 1/4 = <u>1/4</u> or <u>0.25</u>

5 0
3 years ago
75 out of 300 oranges in a basket are bad. what percent age of the oranges are (a) bad (b)good
Likurg_2 [28]

Answer:

a) 25% are bad

b) 75% are good

Step-by-step explanation:

We know that there are 300 oranges total and that 75 are bad. That means that the rest are good (implied).

300 - 75 = 225 good oranges.

So to find the percentage we have to take the selected amount divided by the total amount.

Bad Apples:                               Good Apples:

75 / 300 = 0.25                          225/300 = 0.75

However, that's a decimal or <em>a number out of 1, </em>we need a percent or <em>a number out of 100.</em> So we have to multiply both numbers by 100.

Bad Apples = 25%

Good Apples = 75%

7 0
2 years ago
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