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3 years ago

The sum of two numbers is 54 and the difference is 18 . what are the numbers

1 answer:

4 0

X + y = 54
x - y = 18 Add the two equations together
---------------
2x = 72 Divide both sides by 2

x = 36
36 + y = 54 Subtract 36 from both sides
y = 18
the numbers are 36 & 18

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What is X when 19,695 divided by X-15,605 = 100

Zepler [3.9K]

Step-by-step explanation:

$\frac{19695}{x - 15605} = 100$

$19695 = 100(x - 15605)$

$19695 = 100x - 1560500$

$19695 + 1560500 = 100x$

$15801 95 = 100x$

$\frac{1580195}{100} = x$

$x = 15801.95$

3 0

2 years ago

Tim purchases 3,000 shares in company X at $2.49 per share. The company subsequently announces a profit warning, and the share p

anygoal [31]

Answer:

$750

Step-by-step explanation:

Tim's share price changes by $2.24 -2.49 = -0.25, so the change in the value of his investment is ...

(3000 shares)(-0.25/share) = -$750

Tim takes a loss of $750 when he sells.

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3 years ago

f(x)=5x reflected over the x axis

postnew [5]

Answer:

f(x) = -5x

Step-by-step explanation:

Just add a - sign to reflect it over the x axis

6 0

3 years ago

Which property of operation could you use to show whether 7y + 7b + 3y and 7(y x b) + 3b are equivalent or not

Dmitry_Shevchenko [17]

Answer and explanation:

They are not equivalent because if we simplify the second expression, the result isn't the same:

7(y×b)+3b

= 7(yb)+3b

=7yb + 3b

Therefore 7yb+3b≠7y+7b+3y

And even though you meant

7(y+b)+3b

=7y+7b+3b

=7y+10b

7y+10b≠10y+7b

5 0

2 years ago

When finding percentiles, if the locator L is not a whole number, one procedure is to interpolate so that a locator of 23.75,

inessss [21]

Answer:

The answer is "94"

Step-by-step explanation:

Given data:

51,54,64,68,72,74,76,83,94,94,99

Find:

$P_{75}=?P_{75}= (\frac{75(n+1)}{100})^{th} \ \ observation\\\\$

$= (\frac{75(11+1)}{100})^{th} \ \ observation\\\\= (\frac{75(12)}{100})^{th} \ \ observation\\\\= (\frac{75 \times 12}{100})^{th} \ \ observation\\\\= (\frac{900}{100})^{th} \ \ observation\\\\= 9^{th} \ \ observation\\\\= 9^{th} \ number \ is = 94$

7 0

3 years ago