Starzdaze5572
26.02.2020 •
Mathematics
A 6 feet tall boy cast a shadow of 9 feet at the same time of day at the shadow of the tree measures 21 feet what is the height of the tree
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Ответ:
The shadow of the tree is 14 feet
Step-by-step explanation:
6x21=126
126/9=14
Ответ:
How much of it is (1/2 + 1/9) ?
Before you can add fractions, they need to have the same denominator.
The least common multiple of 2 and 9 is 18, so that's a good choice.
1/2 = 9/18
1/9 = 2/18
(1/2 + 1/9) = (9/18 + 2/18) = 11/18 . That's how much of the circle is NOT shaded.
Since 11/18 of it is NOT shaded, the remaining 7/18 of it is shaded.