$\begin{array}{ccll} amount&\%\\ \cline{1-2} 600 & 100\\ 42& x \end{array} \implies \cfrac{600}{42}=\cfrac{100}{x}\implies \cfrac{100}{7}=\cfrac{100}{x} \\\\\\ 100x=700\implies x=\cfrac{700}{100}\implies x=7$

5 0

1 year ago

Read 2 more answers

If one person recruits five people and each recruited person recruits 5 more, and so on, 15 cycles; how many people would that b

jek_recluse [69]

Answer:

y=5^x

5^15= 30517578125 people

Step-by-step explanation:

x=# of cycles= 15 cycles

y= #of people recruited = what we're figuring out

Plug in 15 for x in the equation y=5^x

y= 5^15= 30517578125 people

3 0

3 years ago

Make X the subject :))

Rom4ik [11]

Answer:

$x = \frac{3 + 8y}{y - 1}$

Step-by-step explanation:

$y = \frac{x + 3 }{x - 8}$

Cross multiply,

y(x - 8) = x +3

yx - 8y = x + 3

yx - 8y -x = 3

yx - x = 3 + 8y

(y - 1)x = 3 +8y

$x = \frac{3 + 8y}{y - 1}$

3 0

3 years ago