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Katarina [22]
3 years ago
8

Pls I NED HELP ASAP I ONLY HAVE 10 MINUTES

Mathematics
2 answers:
vampirchik [111]3 years ago
8 0

Answer:

20

Step-by-step explanation:

x= 20

3x+5 replace x with 5 than do 3x5=15+5=20

Fed [463]3 years ago
4 0

Answer:

20

Step-by-step explanation:

when a letter and a number are next to each other u have to multiply, so x is 5 so 3 x 5 is 15. 15 plus 5 is 20 so 20 is ur answwer

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What is the area of a regular triangle with perimeter = 36 in??
Pavel [41]

Answer:

Step-by-step explanation:

Equilateral triangle

Solve for area

A≈62.35in²

P Perimeter

36

in

a

a

a

a

a

a

a

P

A

Using the formulas

A=3

4a2

P=3a

Solving forA

A=3P2

36=3·362

36≈62.35383in²

8 0
2 years ago
a 64 gallon tank contains 45 gallons of oil. How many gallons are removed if 4/5 of this quantity is sold?
skad [1K]
4/5 is already simplified so its going to be 4/5 or .45
6 0
3 years ago
What number can go into 21 and 27
astra-53 [7]

3 only

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4 0
3 years ago
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Evaluate [6+3(-2)]-6
bagirrra123 [75]

Answer: -6

Multiply 3 by -2 first =-6 inside brackets

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Step-by-step explanation:

8 0
3 years ago
5 rational and irrational numbers in decimal form
alexira [117]

Answer:

A rational number is a number that can be expressed as a fraction (ratio). This includes whole numbers, square roots that can be solved evenly, negatives, decimals, and repeating decimals that can be solved with a fraction.

  1. \frac{1}{2}   ↔  .5
  2. 5  ↔ 5.0
  3. \sqrt{4} ↔ 2.0
  4. -13  ↔  -13.0
  5. 0.38462... (\frac{5}{13})

An irrational number is a number that is NOT rational. It's the complete opposite!

  1. π  ↔  3.14159
  2. .13133133...
  3. \frac{\sqrt{3} }{2}   ↔  0.86603...
  4. -\sqrt{5}  ↔  -2.23607...
  5. \sqrt{5}   ↔   2.23607...

Hope this helps!!!

3 0
3 years ago
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