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yuradex [85]
3 years ago
14

The average (mean) of 90 numbers is 60, and the average of 60 numbers is 90. What is the average of all the numbers?

Mathematics
1 answer:
sveta [45]3 years ago
4 0

Answer: 72

Step-by-step explanation:

Total score of 90 nos. 90 x 60 = 5400

Total score of 60 nos. 60 x 90 = 5400

Total score of 150 nos

= 10800 / 150 = 72

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The triangle angle sum theorem states that the 3 angles within the triangle must have a sum that equals 180 degrees.

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Find X if m/_ UVH=50°, m/_HVW=25x-5, and m/_ UVW = 35x-5.​
ra1l [238]

Step-by-step explanation:

first you have to solve for x

35x - 5=50

35-35x-5= 50-35

x-5=15

x- 5÷5=15÷5

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Now we have to substitute x into the equation.

35×(3)-5=

175-5=170

angle UVW= 170

to find angle HUW instead of solving the equation just subtract 170 from 50 and you will get 120.

angle UVH=50

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7 0
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7 divide by k in algebric expression​
Salsk061 [2.6K]

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4 0
3 years ago
Find the perimeter of a square that is 3inches on a side. 7 inches 15 inches 12 inches 30 inches
In-s [12.5K]

Answer:

12 inches

Step-by-step explanation:

A square has 4 sides with the same length.

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perimeter = 4s

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4 0
3 years ago
Read 2 more answers
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