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3 years ago

Find the value of A in the equation 5/a+3=3/A-2

Mathematics

2 answers:

amid [387]3 years ago

4 0

5+3a = 3-2a
So
5a = -2
a=-2/5=-0.4

tresset_1 [31]3 years ago

3 0

If you would like to find the value of a in the equation 5/a + 3 = 3/a - 2, you can do this using the following steps:

5/a + 3 = 3/a - 2 /*a
5 + 3a = 3 - 2a
3a + 2a = 3 - 5
5a = -2
a = -2/5

The correct result would be -2/5.

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grandymaker [24]

Answer:

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3 years ago

Joon is buying lotion for her mom's birthday. The lotion was originally priced at $18 but is now on sale for 20% off. How much w

vladimir1956 [14]

Answer:

Discount price= $14.4

Step-by-step explanation:

Giving the following information:

Original selling price= $18

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7 0

3 years ago

Joan had $147 to spend on eight books. After buying them she had $11. How much did each book cost?

maw [93]

Answer:

$17

Step-by-step explanation:

Books = x

1. Set up an equation.

147 - 8x = 11

2. Solve for x

147 - 8x = 11

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So, each book cost $17.

6 0

3 years ago

Read 2 more answers

M=(N-2)/N solve for N

Tpy6a [65]

M = (N-2)/N

M = N² - 2N

N² - 2N - M = 0

To find N we need to use quadratic formula.

For our equation x = N, a=1, b= -2, c= -M

$x=\frac{-b+/-\sqrt{b^{2}-4ac} }{2a}
\\ \\N=\frac{-(-2)+/-\sqrt{(-2)^{2} -4*1*(-M)} }{2*1}
\\ \\ N=\frac{2+/-\sqrt{4+4M} }{2} \\ \\ N=\frac{-2+/-2\sqrt{1+M} }{2} = -1+/-\sqrt{1+M} \\ \\ N = -1 +\sqrt{1+M} \ or\ N=-1-\sqrt{1+M}$

4 0

3 years ago