If 1/6 of the pan was left and there were 2 pieces left you just need to set 1/6 equal to 2/some number, this allows you to say that 1/6=2/x --> x/6=2-->x=12. My explanation might be a little poor since this becomes fairly fundamental later on but hopefully it helps.

7 0

3 years ago

Peter learns the following: A cheetah travels about 0.15 kilometers in 5 seconds. A snail travels about 1.5 centimeters in 5 sec

NNADVOKAT [17]

Cheetah travels 0.15 km in .....................5 seconds or
15000 cm ......................5 seconds

a snail travels 1.5 cm in ...........................5 seconds
the cheetah travels in 5 seconds 15000-1.5=14998.50 cm which is equal to
149.985 meters which is choice A

4 0

3 years ago

Find a + b, if b^a = 64 and a^b = 81

jeyben [28]

$\bf \begin{array}{llll}
b^a=64\qquad \boxed{64=4^3}\qquad b^a=4^3
\\\\\\
a^b=81\qquad \boxed{81=3^4}\qquad a^b=3^4
\end{array} \qquad 
\begin{cases}
a=3\\
b=4
\end{cases}
\\\\\\
a+b\implies 3+4$

3 0

3 years ago