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ivanzaharov [21]
3 years ago
15

Please help!! I don’t understand how to do this problem

Mathematics
1 answer:
Oxana [17]3 years ago
5 0

Answer:

D.

Step-by-step explanation:

y  = 3x \\ \frac{y}{3} = x \\   \\  \frac{3y}{3}  + 2y = 45 \\ y + 2y = 45 \\ 3y = 45 \\ y =  \frac{45}{3} \\ y = 15 \\  \\ x =  \frac{y}{3}  \\  =  \frac{15}{3}  \\  = 5

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Math HW please help.
Margarita [4]

Answer:

A  x = 3

Step-by-step explanation:

A = ½θR²

R = x

x = √(2Α/θ)

θ = (360 - 60)(π/180) = 5π/3 radians

x = √(2(15π/2) / (5π/3))

x = √(15π(3/5π))

x = √9

x = 3

7 0
3 years ago
3
zimovet [89]

Answer:

m less then 5

Step-by-step explanation:

its telling you itw no less than 5 so you want to use a less than symbol.

7 0
3 years ago
Iron Man has 400 pounds of iron for his new suit. He got 50% of the iron from Europe, 25% of the iron from Asia, and 10% of the
natima [27]

Answer:

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Step-by-step explanation:

7 0
4 years ago
Simplify<br><br>Square root of 50 over 2 times -4 + square root of 121
kobusy [5.1K]

Answer:

  -9

Step-by-step explanation:

  \sqrt{\dfrac{50}{2}}\cdot(-4)+\sqrt{121}=-4\sqrt{25}+11=-4\cdot5+11\\\\=-20+11=\boxed{-9}

Your calculator can help with this.

4 0
2 years ago
I'LL WON'T BE OFFEND IF U DON'T HELP ME WITH THIS
Evgesh-ka [11]

The average is found by adding the numbers and dividing by 2.

Since the average is 17, the total of the two numbers must equal 17 x 2 = 34.


One number is given as 11, so subtract 11 from 34:

34 - 11 = 23

The other number is 23.

Too check: add 11 and 23 and then divide by 2:

11 + 23 = 34

34/2 = 17.

5 0
4 years ago
Read 2 more answers
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