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77julia77 [94]
3 years ago
6

Write and solve a proportion to answer the question.120% of 10 is what number?​

Mathematics
1 answer:
sveticcg [70]3 years ago
6 0

Answer:

12

Step-by-step explanation:

the proportion is 120/10=1200%

I'm sorry if this is wrong

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sesenic [268]

Answer:

1/2

Step-by-step explanation:

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3 years ago
Solve the following logarithmic equations.<br> log[(x^2 + 2x − 3)^4] = 0
saw5 [17]

Answer:

The solutions are x = 1.24 and x = -3.24

Step-by-step explanation:

Hi there!

First, let´s write the equation:

log[(x² + 2x -3)⁴] = 0

Apply the logarithm property: log(xᵃ) = a log(x)

4 log[(x² + 2x -3)⁴] = 0

Divide by 4 both sides

log(x² + 2x -3) = 0

if log(x² + 2x -3) = 0, then  x² + 2x -3 = 1 because only log 1 = 0

x² + 2x -3 = 1

Subtract 1 at both sides of the equation

x² + 2x -4 = 0

Using the quadratic formula let´s solve this quadratic equation:

a = 1

b = 2

c = -4

x = [-b± √(b² - 4ac)]/2a

x =  [-2 + √(4 - 4(-4)·1)]/2 = 1.24

and

x = [-2 - √(4 - 4(-4)·1)]/2 = -3.24

The solutions are x = 1.24 and x = -3.24

Have a nice day!

4 0
3 years ago
WILL MARK BRAINLYEST<br> ❤️❤️❤️❤️❤️❤️
Valentin [98]

Answer:

$108.19

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3.6%/100 = 0.036 per year.

Solving our equation:

P = 119.88 / ( 1 + (0.036 × 3)) = 108.19494584838

P = $108.19

The principal investment required to get a total amount, principal plus interest, of $119.88 from simple interest at a rate of 3.6% per year for 3 years is $108.19.

Hope this helps!

6 0
3 years ago
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lara31 [8.8K]

So from what I am seeing is $2 + $1.29 times 30. Which would be $43.7

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3 years ago
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photoshop1234 [79]
S< ____ i’m not sure if this is what your asking but.....
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