Subtraction property of equality is the answer.
Ok so where they went wrong was they subtracted incorrectly when trying to prove RSQ’s degree.
RSQ+35+75=180
So 35+75= 110
And when you subtract 180-110= 70°
BUT, in the box for subtraction property of equality, they write RSQ is equal to 75° which is incorrect because they subtracted wrong.
Answer:
Write a time equation, time = dist/speed
:
go time + return time = total time
d%2F16 + d%2F15 = 7.75 hrs
multiply equation by the least common multiple 240, cncel the denominators:
15d + 16d = 240(7.75)
31d = 1860
d = 1860/31
d = 60 km one way
total dist = 120 km
:
Check this, find the actual time each way
60/16 = 3.75 hrs
60/15 = 4 hrs
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total time 7.75 hrs
Step-by-step explanation:
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Slope :
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y = -5x + 2
Slope = -5
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y - intercept :
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At (0. 3), y-intercept = 3
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Equation :
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y = mx + b
y = -5x + 3
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Answer : y = -5 + 3
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20 cups
4 rows of 5 containing the 3 inch cups and 5 columns of 4 containing the 3 inch cups
