$\displaystyle\\
\frac{x}{y} ~~~ \Big( \texttt{ for } x = \frac{2}{3} \texttt{ and } y = \frac{6}{7} \Big)= ?\\ \\ \\ 
\Longrightarrow~~~\frac{x}{y}= \frac{~\frac{2}{3} ~}{\frac{6}{7} }= \frac{2}{3} \cdot \frac{7}{6} =\frac{2\cdot 7}{3\cdot6 }= \frac{7}{3\cdot 3 }= \boxed{\frac{7}{9}} \\ \\ \\ 
\texttt{Correct ansver: A}$

4 0

3 years ago

The population of a city in 2005 was 18,000. By 2010, the city’s population had grown to 45,000. Economists have determined that

SpyIntel [72]

Exponential model is y=Ae^(kt)
Assume initial start is 2005, time = 0, so y = 18000e^(kt)
45000 = 18000*e^(k5)
solve for k, approx 0.1832
y = 18000*e^(1.832) = 112,435, approximately

6 0

3 years ago

Pamela is 12 years younger than Jiri. The sum of their ages is 80. What is Jiri's age?<br> years old

vfiekz [6]

80/2= 40
46-34= 12
So Pamela is 34 & Jiri is 46

7 0

3 years ago

Suppose a house has a floor area of 2,250 square feet. what is this area in units of square centimeters?

Natali [406]

1 feet = 30.5 centimetres

1 feet² = (30.5)² centimetres²

2250 feet² = 2250 × 30.5² = 2093062.5 centimeters²

3 0

3 years ago