9/10 of the calls they received were true emergencies because 90 out of 100 into a fraction is 90/100 and if you simplify that, it becomes 9/10. Hope that helps!
Answer:
(-2, 8) and (5, -1)
slope: (y² - y¹) / (x² - x¹)
(-1 - 8) / (5 + 2) = -9/7
y = -9/7x + b
8 = -9/7(-2) + b
8 = 18/7 + b
8 = (2.57) + b
b = 5.43
y = -9/7x + 5.43
parallel = same slope
y = -9/7x
perpendicular = reciprocated slope
y = 7/9x
Answer:
Hypothesis: If the temperature gets below normal the pool will be closed.
Conclusion: As a result of the temperature dropping below the regular or room temperature needed in order to be used the pool will be closed.
Step-by-step explanation:
You set it up as fractions 4/5 = 28/x and solve for x then add the numbers together. 5*28=140 140/4= 35 35+28= 63
Answer: 4
Solving Steps:
2x-y=11
x+3y=-5
-2x-y=11
-2x-6y=10
-7y=21
y=-3
x+3(-3)=-5
x=4