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Crazy boy [7]
3 years ago
13

Without using paper and pencil, how would you find the sum of 23 and 37?

Mathematics
2 answers:
ankoles [38]3 years ago
8 0
You could use a calculator, or do mental math.  
exis [7]3 years ago
4 0
You could also use your fingers, but that would take a while.
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Area of rectangular figures​
iren2701 [21]

Answer:

531 in^2

Step-by-step explanation:

21 x 18 = 378 in^2

17 x 9 = 153 in^2

378 + 153 = 531 in^2

3 0
3 years ago
Si Adrián tiene “x” años de edad, Teresa la tercera parte de Adrián, Isabel el doble de Teresa y Felipe el cuádruple de Adrián,
bixtya [17]

the answer is ISABELLA YOUR BOYFRINDS HERE

4 0
2 years ago
Suppose that prices of recently sold homes in one neighborhood have a mean of $215,000 with a standard deviation of $8900. Using
bonufazy [111]

Answer:

The minimum percentage of recently sold homes with prices between $197,200 and $232,800 is 75%.

Step-by-step explanation:

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by 100(1 - \frac{1}{k^{2}}).

In this question:

Mean of $215,000, standard deviation of $8900.

What is the minimum percentage of recently sold homes with prices between $197,200 and $232,800?

215000 - 2*8900 = 197200

215000 + 2*8900 = 232800

Within 2 standard deviations of the mean, so:

The minimum percentage of recently sold homes with prices between $197,200 and $232,800 is 75%.

4 0
3 years ago
Solve the system by elimination<br><br> 2 + 5 = −24<br> 3 − 5 = 14
belka [17]

Answer:

7=24

-2 = 14

Step-by-step explanation:

(2+5)= 7=24

8 0
3 years ago
Jim Tree has $3,300 in cash and $3,300 in owners equity. The following transactions take place. You withdraw $500 for yourself,
nirvana33 [79]
3,300-500=2,800
2,800+ 950=3,750
3750-60= 36,900
36,900-225= 36,675

8 0
3 years ago
Read 2 more answers
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