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STALIN [3.7K]
3 years ago
8

7th Grade Math Please help I will give brainliest!! 19 = 5/3 r Find the value of r

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

\huge\boxed{r=\dfrac{57}{5}\to r=11\dfrac{2}{5}\to r=11.4}

Step-by-step explanation:

19=\dfrac{5}{3}r\to\dfrac{5}{3}r=19\qquad|\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup\cdot\dfrac{5}{3\!\!\!\!\diagup}r=19\cdot3\\\\5r=57\qquad|\text{divide both sides by 5}\\\\\dfrac{5r}{5}=\dfrac{57}{5}\\\\r=\dfrac{57}{5}\to r=11\dfrac{2}{5}\to r=11.4

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Crazy boy [7]

Answer:

You are drawing a right triangle. So draw the two lines off of the right angle. Then write 5 along one line. That line is now BC, so you can start naming points and putting in lengths. Then, draw the hypotenuse (AB) going from the end of the line you were writing next to, to the other line. Make sure it is at least twice as long, because it is 13 long. Then, to find the length of the last line,  square 13, and subtract 25 from it. Take that number and find it's square root. You should get 12, which is your answer.

Step-by-step explanation:

4 0
3 years ago
why might you want to use the commutative property to change the order of the intergers in the following sum before adding? -80+
serious [3.7K]
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6 0
2 years ago
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SCORPION-xisa [38]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
A train traveling at a constant speed takes a passenger from Deer Lake to Liberty, stopping first at Summerville and next at Cyp
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3 years ago
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Answer:

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Does this help

Step-by-step explanation:

7 0
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