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Vaselesa [24]
3 years ago
11

Maria calculated that she could make $18,000 over the summer. Instead she ended up making 15,000. Calculate the variance.

Mathematics
1 answer:
Luden [163]3 years ago
8 0

Answer:

3000 i think that's the answer.

Step-by-step explanation:

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What percent of 4c in each expression? <br> 0.2c
Ymorist [56]

The percentage of 4c in the expression 0.2c is 2000%

<h3>How to determine the percentage of 4c?</h3>

The expression is given as:

0.2c

The percentage of 4c is then calculated as:

4c/0.2c

Evaluate the quotient

20

Express as percentage

2000%

Hence, the percentage of 4c in 0.2c is 2000%

Read more about percentages at:

brainly.com/question/843074

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7 0
2 years ago
What fraction is equal to 0.45?
Jlenok [28]

Answer:

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4 0
3 years ago
Read 2 more answers
May someone help me get the right answer please
AleksandrR [38]
The answer is 24.5 by rounding off nearest tenth it becomes 25
PROCEDURE:
1: put all the numbers in numerical order i.e.22,23,24,24,25,26,28,29;
2:now the total amount of values is even, so the median will be the mean of two central values i.e. 
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now by rounding it off to nearest tenth it becomes 25
3 0
3 years ago
A cubed-shaped box has its side lengths decreased by 3 cm, when this happens, the volume decreases by 1385cm^3. What is the side
mixer [17]

Answer:

Step-by-step explanation:

let side of cube=x cm

volume=x³ cm³

again side=(x-3) cm

volume=(x-3)³ cm³

x³-(x-3)³=1385

(a³-b³)=(a-b)(a²+ab+b²)

(x-x+3){x²+x(x-3)+(x-3)²}=1385

3(x^2+x²-3x+x²-6x+9)=1385

3(3x²-9x+9)=1385

9x²-27x+27=1385

9x²-27x+27-1385=0

9x²-27x-1358=0

x=\frac{27\pm\sqrt{(-27)^2-4*9*(-1358)} }{2*9} \\x=\frac{27\pm\sqrt{729+48888} }{18} \\or~x=\frac{27\pm\sqrt{49617} }{18} \\or~x=\frac{27\pm 222.749}{18} \\taking positive side only as negative sign gives negative length.\\or~x=\frac{27+222.749}{18} \\or~x\approx13.87

3 0
3 years ago
Which expression is equivalent €2x5/18? Assume x&gt;0.
vodomira [7]

Answer:

Which expression is equivalent €2x5/18? Assume x>0.

even google is confused of this question its taking to long to load when i put it in

EXPLAIN YOURSELF

btw the answer is Answer: A \frac{x^2\sqrt{x}}{3}

4 0
3 years ago
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