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dani6651
17.12.2020 •
Mathematics
Janiya hiked 4/5 of a mile in 1/3 of an hour what is the hiking speed in miles per hour
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Ответ:
Janiya has a speed of
miles per hour.
Step-by-step explanation:
Given that:
Distance covered = 4/5 of a mile
Time taken to cover the distance = 1/3 of an hour
Speed is defined as the distance travelled in a certain time.
Speed of Janiya =![\frac{Distance}{Time}](/tpl/images/0995/4629/874b4.png)
Speed of Janiya =![\frac{\frac{4}{5}}{\frac{1}{3}}](/tpl/images/0995/4629/11efd.png)
Speed of Janiya =![\frac{4*3}{5*1}](/tpl/images/0995/4629/1acad.png)
Speed of Janiya =![\frac{12}{5}](/tpl/images/0995/4629/e82cb.png)
Speed of Janiya =
miles per hour
Hence,
Janiya has a speed of
miles per hour.
Ответ:
9514 1404 393
x = 20°
Step-by-step explanation:
Assuming parallel lines, the two angles marked with measures are complementary to each other.
45° +(5x +35°) = 180°
5x = 100° . . . . . . . . . . . . subtract 80° from both sides
x = 20° . . . . . . . . divide by 5
Comment on the geometry
Where a transversal crosses parallel lines, all of the obtuse angles are congruent, and all of the acute angles are congruent. Of course, the acute angles and obtuse angles are linear pairs, hence supplementary. (The only time this won't apply is when all angles are right angles.)
No lines are marked as parallel here, nor does any part of this problem statement say there are parallel lines. So, we cannot find the value of x if we're going strictly by what is shown in the diagram. In the absence of any information, we can only say that the angle marked with an x-expression must be between 0° and 180°.
0 ≤ 5x +35 ≤ 180 ... -35 ≤ 5x ≤ 145 ... -7 ≤ x ≤ 29.