Answer:
y=2x
Step-by-step explanation:
rise/run 2/1
(a.)
Mean= sum / n
Mean= (123+116+122+110+175+126+125+111+118+117) / 10
Mean=1243 / 10
Mean= 124.3
Median:
Rearranged the data in order first
110,111,116,117,118,122,123,125,126,175
118 and 122 are at the middle
Median=1/2(n1 + n2)
Median=1/2(118+122)
Median=240/2
Median= 120
(b) 175 is the larger than the others value and larger than the mean, so it is the substantial difference between the mean and the highest value (175).
<span>Let Rico's speed be S
Then Luis' is: 3S
</span>We then get: seventy-two over s equals seventy-two over three s plus four
216=72+12s Multiplying by LCD, 3S
216-72=12s
<span>144 = 12S
</span><span>S, or Rico's speed would be 144 over 12 or 12mph</span>
Step-by-step explanation:
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Y= 1/2x - 1.
the slope is 1/2 and the y-intercept is -1