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Lynna [10]
3 years ago
13

The simple interest on a sum of money is 25% of the rate percent per annum find the rate​

Mathematics
1 answer:
kifflom [539]3 years ago
7 0

si =25%*p  

rate =term=t  

from si= ptr/100

term = rate = 5

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X^2/9+2y/7 help me solve
vfiekz [6]

So firstly, we have to find the LCD, or lowest common denominator, of 9 and 7. To do this, list the multiples of 9 and 7 and the lowest multiple they share is going to be your LCD. In this case, the LCD of 9 and 7 is 63. Multiply x^2/9 by 7/7 and 2y/7 by 9/9:

\frac{x^2}{9}\times \frac{7}{7}=\frac{7x^2}{63}\\\\\frac{2y}{7}\times \frac{9}{9}=\frac{18y}{63}\\\\\frac{7x^2}{63}+\frac{18y}{63}

Next, add the numerators together, and your answer will be: \frac{7x^2}{63}+\frac{18y}{63}=\frac{7x^2+18y}{63}

4 0
3 years ago
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3 0
3 years ago
William,Jan and Greg have a total of $26. Greg has the most money. Jan has twice as much money as William. Greg has $11 dollars.
Alexeev081 [22]

Answer:

$10

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6 0
3 years ago
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2 years ago
D/dx(sin x/2+cos x) = (a + b cos x)/(2+cos x)^2 find a and b.​
Talja [164]

Answer:

a = 1 and b = 2

Step-by-step explanation:

Using the Quotient Rule>

d/dx[(sin x)/(2+cos x) ]

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But cos^2x + sin^2x = 1 so we have:

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- so a = 1 and b = 2.

7 0
3 years ago
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