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Sliva [168]
3 years ago
12

Doug is 2 more than twice the age of Joey. The sum of their ages is 74. How old is Doug?

Mathematics
1 answer:
Citrus2011 [14]3 years ago
4 0
The answer would be 37
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Andrew wants to build a slide for his daughter’s tree house. If the tree house is 5 ft off the ground and he wants the slide to
Lapatulllka [165]
Andrew is wanting to build a slide for his daughter's tree house in the backyard. The tree house is approximately 5 feet off the ground and he wants the slide to have a 30 degree angle with the ground. He will need to by 10 ft of sliding board. 
3 0
3 years ago
Carly spend 10 hours a day working at her job what percentage of her day does she spend at work ?
AlladinOne [14]
10/24 x 100 = 41.66
Approximately 42% of her day
3 0
3 years ago
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Identify the perimeter and area of a square with diagonal length 11in. Give your answer in simplest radical form. HELP PLEASE!!
Nataliya [291]

Answer:

  • Perimeter = 22*sqrt(2)
  • Area = 60.5 inches
  • D

Step-by-step explanation:

Remark

You need 2 facts.

  1. A square has 4 equal sides.
  2. It contains (by definition) 1 right angle but since we are not including and statement about parallel sides, it needs 4 right angles.

That means you can use the Pythagorean Theorem.

If one side of a square is a then the 1 after it is a as well.

Formula

  • a^2 + a^2 = c^2
  • 2a^2 = c^2

Givens

  • c = 11

Solution

  • 2a^2 = 11^2
  • 2a^2 = 121                    Divide by 2
  • a^2 = 121/2                  Take the square root of both sides
  • sqrt(a^2) = sqr(121/2)    
  • a = 11/sqrt(2)                Rationalize the denominator
  • a = 11 * sqrt(2)/[sqrt(2) * sqrt(2)]
  • a = 11 * sqrt(2) / 2

<em><u>Perimeter</u></em>

P = 4s

  • P = 4*11*sqrt(2)/2
  • P = 44*sqrt(2)/2
  • P = 22*sqrt(2)

You don't need the area. The answer is D

<em><u>Area</u></em>

  • Area = s^2
  • Area = (11*sqrt(2)/2 ) ^2
  • Area = 121 * 2 / 4
  • Area = 60.5


8 0
3 years ago
If a bike is $125 how much will it be when its discounted by 20%
weeeeeb [17]

Answer:

160 pages.

Step-by-step explanation:

That is 125 - 0.20 * 125

= 125 - 25

= 160 pages.

6 0
3 years ago
Read 2 more answers
Im throwing tons of points for these questions so please help
Galina-37 [17]

10. x = 4,-4

11.  x = 2,-2

12. Length = 12 yards, Weight = 6 yards

13.  x = -5,2


3 0
3 years ago
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