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lozanna [386]
4 years ago
5

Does 5x=9+2x have one solution

Mathematics
1 answer:
amid [387]4 years ago
5 0

Answer:

Yes, x=3

Step-by-step explanation:

Step 1. Subtract 2x from each side

5x=2x+9

-2x -2x

Step 2. Divide both sides by 3

3x/3=9/3

x = 3

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Is this right plz tell the truth and be honest about it this is all my points.
sergejj [24]

Answer:

Yes it is correct because the exact number is 516 so yes

Step-by-step explanation:

155 times 3.333 = 516

5 0
4 years ago
10 Type the correct answer in the box. Use numbers instead of words. Use a calculator to help solve the problem. а A community g
MatroZZZ [7]

Answer:

$130.68

Step-by-step explanation:

1 acre = 43,560 square feet

3/4 of 43560 = 32,670 (So that would be 76,230 sq ft in 1.75 acres because 43560 + 32670 = 76230)

We need to divide the total by 35 plots.

76230 / 35 = 2178, using long division.

2,178 square feet is just one plot of 35. We need to multiply 2178 by 0.06.

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6 0
3 years ago
Solve x2 + 2x + 9 = 0
Keith_Richards [23]
x^2+2x+9=0 \\ \\
a=1 \\ b=2 \\ c=9 \\ b^2-4ac=2^2-4 \times 1 \times 9=4-36=-32 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-2 \pm \sqrt{-32}}{2 \times 1}=\frac{-2 \pm \sqrt{-16 \times 2}}{2}=\frac{-2 \pm 4i\sqrt{2}}{2}=-1 \pm 2i\sqrt{2}

The answer is D.
8 0
3 years ago
Read 2 more answers
Can anyone help me start this? Its about Factoring Trinomials
alexgriva [62]
For these problems, there's a rule. For example, in the first problem, the answer is going to be (t+?)(t+?), and the ?s are going to multiply to get the constant and add to get the coefficient in the second term.

Do you need answers&work?
7 0
4 years ago
Ruth has a beaker containing a solution of 800 mL of acid and 200 mL of water. She thinks the solution is a little strong, so sh
Alexeev081 [22]

Answer:

Step-by-step explanation:

Ok so the beaker is 200 water:800 acid

So she drains 100 from the acid and 100 from the water which equals

100:700

Then she adds 200 water:

300:700

there is 300 mL water in da beaker now

i might got it wrong tho

5 0
3 years ago
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