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Rufina [12.5K]
3 years ago
13

The mean age of 5 people in a room is 36 years. A person enters the room. The mean age is now 39. What is the age of the person

who entered the room?
Mathematics
1 answer:
____ [38]3 years ago
7 0
Your answer is 36.5. Hope this helps!
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Write with explain. ​
antiseptic1488 [7]

Answer: The acute angle between diagonals is 50

Step-by-step explanation:

Red angle = 50 because An exterior angle of a triangle is equal to the sum of the opposite interior angles (pink angles).

Alternatively:

Green angle is 130 by sum of interior angles of a triangle.

Red angle is 50 by Adjacent angles

8 0
3 years ago
the sum of three consecutive even integers is 6 subtracted from 4 times the middle number. Find the 3 numbers
anygoal [31]

Answer:

The three consecutive even integers are 4,6,8

Step-by-step explanation:

Let the three consecutive even integers be  2x, 2x+2, 2x + 4

Middle number = 2x +2

2x + 2x+2 + 2x + 4 = 4* (2x+2) - 6

6x + 6 = 4*2x + 4*2 - 6

6x + 6 = 8x + 8 -6

6x + 6 = 8x + 2

6x - 8x = 2 -6

-2x = -4

x = -4/-2

x = 2

The three consecutive even integers are  

2x = 2*2 = 4

2x+2 = 2*2 +2 =4 + 2 = 6

2x + 4 = 2*2+4 = 4+4 = 8

8 0
3 years ago
2y^4 x 5y^3 please can you help me
Morgarella [4.7K]

Answer:

20y^7. this is because the exponents are added together because the variable attached to the coefficient are the same therefor the coefficients are multiplied, and the exponents are added together.

8 0
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cupoosta [38]

Answer: the answer is 1000years of death!!!

Step-by-step explanation:

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Simplify the expression.<br><br> −10−3
kirill115 [55]

Answer:

-13

Step-by-step explanation:

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