5x=39 x stands for the age of bob so 39/5 =7.8 which is rounded up to 8 and if you multiply 8 by 5 you get 40 but if you multiply 7.8 by 5 you get 39 so his age would be 7.8 years old.

4 0

3 years ago

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Hurry up plz it’s due in like 5 mins

777dan777 [17]

uhm i think its 15 cause you just add them all i guess

7 0

3 years ago

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Solve for c of the right triangle

Ede4ka [16]

In order to solve this triangle we must use cosine law:
$c^{2} = a^{2} + b^{2} - 2ab*cosC$

Now let's plug in the values we are given:
$c^{2} = 5^{2} + 8^{2} - 2(5)(8) * cos 67$
$c^{2} = 25 + 64 - 80*cos67$
$c = \sqrt{80-cos67}$

5 0

4 years ago

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Write 5 5/32 as a decimal.​

Write 5 5/32 as a decimal.