Answer:
240
Step-by-step explanation:
360 - 120 = 240
F a ship's path<span> is </span>mapped<span> on a </span>coordinate grid<span>, it </span>follows<span> a </span>straight-line path<span> of </span>slope 3<span> and </span>passes through point<span> (</span>2<span>, </span>5<span>). </span>Part<span> A: What is the equation of the </span>path<span>? </span>Part<span> B: Does the </span>ship pass through point<span> (7, 22)?. </span>Part<span> C: A second </span>ship follows<span> a straight line, with the equation x + 3y − 6 = 0. Are these two </span>ships<span> </span>
Answer:
one solution
Step-by-step explanation:
x + y = 6 so 2x + 2y = 12
That means 3y = 9 so there is only one solution. x also equals 3
Answer:
y = -1/4
Step-by-step explanation:
y/5 +3/10 = (y+2)/7
The LCD is 10·7 = 70. Multiplying the equation by 70 gives ...
14y +21 = 10(y +2)
14y +21 = 10y +20 . . . . eliminate parentheses
4y + 21 = 20 . . . . subtract 10y
4y = -1 . . . . . . . . . subtract 21
y = -1/4 . . . . . . . . .divide by 4
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<em>Check</em>
(-1/4)/5 +3/10 = (-1/4 +2)/7 . . . . . substitute for y
-1/20 +6/20 = (7/4)/7 . . . simplify a bit, rewrite 3/10
5/20 = 1/4 . . . . . . . . . . true
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Add sides 2
Simplification
Divide sides by 9
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