if it takes 42 minutes to load 3 1/2 trucks,...

Math Staff asked 9 months ago

Answer:

78 minutes

Explanation:

42 minutes =3.5 trucks

x minutes = 6.5 trucks

\[\ \frac{42}{x} = \frac{3.5}{6.5} \]

\[\ \frac{42}{x} = \frac{35}{65} \]

Cross Multiplication

\[\ 35 \times x = 42 \times 65 \]

\[\ x = \frac{2730}{35} \]

\[\ x = 78 \]

Method 2

\[\ 3.5\;truck\;load\;in\;42\;minutes\]

\[\ then\;1\;truck\;load\;in\; \frac{42}{3.5} minutes = 12\; minutes \]

\[\ then\;6.5\;truck\;load\;in\;6.5 \times 12 \;minutes = 78 \;Minutes \]