90 degrees is one quarter of a circle so,
circumference = 4 * 117.75 = 471
circumference = 2 * PI * radius
radius = 471 / (2*PI)
radius =
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74.9619781963
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3x-5y=4------eq1
4x+3y=15-------------eq2
multiply 3 to first eq and 5 to second eq.
9x-15y=12
20x+15y=75
subtract both eqs
29x=87 x=3 so put x in eq 1
3(3)-5y=4
5y=5
y=1
Answer:
17
Step-by-step explanation:
so x stays the same, so you look at the y integers and to get to the negatives you have to go down 5 times, then 12 more to get to -12. So 5+12= 17
Hope this helps!!!!
I think its 71, but I am not 100% sure. Take this as a secondary answer.
To find the quotient of 45 and 3 6/7,
(45) / (3 6/7)
(45) / (27/7) [convert the mixed number to an improper fraction]
(45) * (7/27) [to divide by fraction, invert denominator and multiply]
315 / 27
35 / 3 [optionally, reduce fraction]
11 2/3 [convert improper fraction to mixed number]
