78% of 3 feet is inches.
Answers
Final answer:
To find 78% of 3 feet in inches, you can convert 3 feet to inches (giving 36 inches), then find 78% of this by multiplying by 0.78. This gives us 28.08. Therefore, 78% of 3 feet is 28.08 inches.
Explanation:
To find 78% of 3 feet in inches, first convert the feet to inches. Since 1 foot equals 12 inches, 3 feet is equivalent to 36 inches. Now, to find 78% of these 36 inches, multiply 36 by 0.78 (which is the decimal equivalent of 78%). This gives us 28.08. Therefore, 78% of 3 feet is 28.08 inches.
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Which number is a common factor of 24, 48, and 144?16 10 9 8
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143/100*600=858
I need help with question.
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(9n + -6n) + (-2+-3)
=3n -5
Answers
21x>2 should be the answer
Answers
Answer:
The answer is rotational symmetry.
Step-by-step explanation:
The Rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about a point lying in its plane. A shape is said to possess rotational symmetry when it still looks the same after we rotate it.
4x-3y=15
8x^2-27y^2=45
Answers
8 x² - 27 y² =45
Isolate y for 4 x - 3y = 15
4 x - 3y = 15 ( add 3y to both sides ):
4x-3y +3y = 15 + 3y
4x = 15 + 3y
Divide both sides by 4 :
4x / 4 = 15 + 3y / 4
x = 15+3y / 4
Plug the solutions x = 15+3y / 4 into : 8 x² - 27 y²=45
8 ( 15+3y / 4 )² - 27 y² = 45
1/2 ( 3y+15)² - 27 y² = 45
Multiply by LCD = 2
9 ( y+5)² - 54 y² = 90
-45 y² + 90 y + 225 = 90
- 45 y² + 90 y = 225 - 90
-45 y² + 90 y = 135 = 0
-45 ( y + 1 ) ( y - 3 ) = 0
Using the zero factor principle:
Solve ( y + 1 ) = 0
y = - 1
Solve ( y - 3 ) = 0
y = 3
y = -1 and y = 3
Plug the solution y = -1 , y = 3 into : 4 x - 3 y = 15
4 x - 3 y = 15 for - 1 :
4 x - 3 ( - 1 ) = 15
4 x + 3 = 15
4 x = 15 - 3
4 x = 12
x = 12 / 4
x = 3
For 3 :
4 x - 3 y = 15
4 x - 3 ( 3 ) = 15
4 x - 9 = 15
4 x = 15 + 9
4 x = 24
x = 24 / 4
x = 6
Therefore the final solution :
y = 3 , x = 6
y = - 1 , x = 3
hope this helps!
Answers
x=25
the square root of 25 is 5
that means x=5
Square root 4x^2=square root 100
4x=plus or minus 10
4x/4=plus or minus 10/4
X= -2.5, x= 2.5