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katovenus [111]
3 years ago
8

How do you find the measure of each

Mathematics
1 answer:
bogdanovich [222]3 years ago
4 0
Um, so it's a bit awkward with this question because they actually got the x value incorrect. When they added up all the values, they got 9x - 27 = 180, but it's actually 9x + 27 = 180 because -18 + 45 is positive 27. Anyways, when you solve it correctly you get x = 17, and then you substitute it into the angles. So with 5x - 18, you are saying 5(× 17) - 18 = 67. Then with the other one you do 4(× 17) + 45 = 113. You know that x is definitely 17 because 113 + 67 = 180.
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vovikov84 [41]
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6 0
3 years ago
Chet's father is 5 times as old as Chet. In 6 years, his father will
zaharov [31]

Answer: Chet is 6 years old now

Step-by-step explanation:

Chet is 6 years old now and his father is 5 x 6 years = 30 years old now.


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6 0
1 year ago
The ratio of two numbers is 1:4, and the sum of these numbers is 40. Find the numbers
Irina-Kira [14]
X + 4x = 40

5x = 40

5x/5 = 40/5

x = 8


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Check=

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3 0
2 years ago
For the arthritic sequence 5,9,13,17,21,... how many terms would you need to get to 129
Vlad1618 [11]

9514 1404 393

Answer:

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The first term is 5 and the common difference is 9-5=4, so the n-th term is ...

  an = a1 +d(n -1)

  an = 5 +4(n -1) = 4n +1

Then the term number for the term 129 is ...

  129 = 4n +1 . . . . . put the given value in the formula

  128 = 4n  . . . . . . . subtract 1

  32 = n . . . . . . . . . .divide by 4

The 32nd term is 129.

8 0
3 years ago
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17 are older than 16 years old and 12 are taller than 170 cm
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