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3 years ago

Josie rode her bike 18 miles at 12 and then rode another 24 miles at 15.

Mathematics

1 answer:

sleet_krkn [62]3 years ago

8 0

18/12= 1.5
24/15= 1.6
1.6+1.5=3.1
I think D is your answer

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Salsk061 [2.6K]

The slope formula is the changes of two y-values over/to the changes of two x-values.

$\large \boxed{m = \frac{y_2 - y_1}{x_2 - x_1} }$

Substitute two given points in the formula to find the slope. The m-term represents the slope from y = mx+b.

$\large{m = \frac{10 - ( - 8)}{2 - 10} } \\ \large{m = \frac{10 + 8}{ - 8} } \\ \large{ m = \frac{18} { - 8} \longrightarrow \frac{9}{ - 4} } \\ \large \boxed{m = - \frac{9}{4} }$

Answer

The slope is -9/4.

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