Answer:
a
Step-by-step explanation:
(3x-14)+9x=90, thus,
((3x-14)+9x)+90=180
90+90=180
The image is attached with the answer.
<h3>What is a Magic Square ?</h3>
A magic square is a 3*3 , 4*4 ,5*5 square in which the magic sum is constant for all the columns and rows and even diagonally the sum is same.
The empty squares have been filled and the image has been attached.
The magic sum is 0.81
To know more about Magic Square
brainly.com/question/16188625
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Answer:
Fraction: 24/30 Percentage: 80%
Step-by-step explanation:
It might want a simplified version of the fraction, so the answer for that one could be 4/5. I hope this helps :)
<h3>
Answer: 5.5 which is choice B</h3>
Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle
opposite the reference angle is the vertical side x
adjacent to the reference angle is the horizontal side 15
We'll use the tangent rule. Make sure your calculator is in degree mode.
tan(angle) = opposite/adjacent
tan(20) = x/15
15*tan(20) = x <<-- multiply both sides by 15
x = 15*tan(20)
x = 5.45955 <<--- use calculator; this is approximate
x = 5.5 <<--- round to one decimal place
Answer:
75 miles
Step-by-step explanation: