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2 years ago

Elsa and Anna share $2000 in the ratio 5 : 3. How much does each of them get?

Mathematics

1 answer:

Karolina [17]2 years ago

5 0

Answer:

Let them be "x"

5x+3x= $2000

8x= $2000

x= 2000/8

x= 250

5* 250= 1250.

3*250= 750.

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xxTIMURxx [149]

Answer:

The answer is 57.2

This is correct

3 0

2 years ago

If 3x+y = 7, what is the value of x/y? SOMEONE HELP I NEED IT QUICK!! plsss

andrey2020 [161]

Answer:

x=2 y=1

Step-by-step explanation:

3 times 2 =6

plus 1 = 7

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2 years ago

3. A company with loud machinery needs to cut its sound intensity to 44% of its original level. By how many decibels would the l

sergeinik [125]

Answer: 3. The correct option is: A) 3.57 decibels.

6. The correct option is: B) $ln(\frac{x^2}{c^5})$ 

Step-by-step explanation:

3. Sound intensity is cut to 44% of its original level. That means, if the original sound intensity was 100, then now sound intensity will be 44.

So, $I_{0}= 100$ and $I= 44$

Using the formula $L= 10log(\frac{I}{I_{0}})$ , we will get.....

$L= 10log(\frac{44}{100})\\ \\ L= 10log(0.44)\\ \\ L= 10(-0.3565...)=-3.565...\approx -3.57$

(Rounded to the nearest hundredth)

So, the loudness would be reduced by 3.57 decibels.

6. Given expression is: $2ln(x) - 5ln(c)$

First applying the property $m*log(x)= log(x^m)$ , we will get.....

$ln(x^2)-ln(c^5)$

Now using the formula, $log(a)-log(b)= log(\frac{a}{b})$ , we will get....

$ln(x^2)-ln(c^5) = ln(\frac{x^2}{c^5})$

Thus, the answer as a single natural logarithm is $ln(\frac{x^2}{c^5})$

8 0

2 years ago

Determine whether this system of equations has one solution, no solution, or infinitely many solutions.

prohojiy [21]

Answer:

The only solution I see is for x=0

Step-by-step explanation:

y=8x+2

y=-8x+2

y=y so substitute:

8X+2=-8X+2

Subtract 2 from each side

8X=-8X

divide each side by 8

x=-x

The only solution I see is for x=0

4 0

2 years ago

B +2.01 =5.5 what dose b equal

Rom4ik [11]

Answer:

3.49

Step-by-step explanation:

B = 5.5-2.01 = 3.49

have a great day!

6 0

2 years ago

Read 2 more answers