Answer:B
Step-by-step explanation:
B
Answer:
x = -2
y = -1
Step-by-step explanation:
2x+y = -5 so y = -5-2x
3x+2y = -8
substitute for y
3x+2(-5-2x) = -8
3x-10-4x = -8
-10-x = -8
add 10 to both sides
-10+10-x = -8+10
-x = 2
divide both sides by -1
-x/-1 = 2/-1
x = -2
y = -5-2(-2)
y = -5+4
y = -1
Answer:
x = 45. Flip the fraction, then multiply by the answer.
Answer: John Graunt
Step-by-step explanation:
John Graunt is referred to as the Columbus of statistics because his book made a fundamental contribution by attempting to demonstrate the quantitative characteristics of birth and death data.
He's regarded as the founder of demography which is the statistical study of the population of human beings.
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