You need to win 30 matches in a row to raise its winning percentage to 90%
3(18 - x/3 = -7)
54-x = -21
-x = -75
x = 75
The value of y from the given trig expression is pi/3 rad
<h3>Trigonometry identity</h3>
These identities are expressed in terms of sine, cosine and tangent
Given the expression

Expand sin(x+y)
sin(x+y) = sinxcosy + cosxsiny
Compare both equations
cosy = 1/2
y = arccos(1/2)
y = 60 degrees
y = pi/3 rad
Hence the value of y from the given trig expression is pi/3 rad
Learn more on trig function here: brainly.com/question/24349828
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Answer:
2500 tiles
Step-by-step explanation:
convert the path to the same units, one m = 100 cm
path= 500 cm x 300 cm
path area = 150,000 cm^2
each tile = 10x6 = 60 cm^2
150,000/60 = 2500 tiles