How do I solve this problem using the substitution method?
1 answer:
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The region that covers 23 km^2 has population of 1380 people
Step-by-step explanation:
The population is calculated using population density by multiplying the population density with the area.
Here,
Population density = d = 60 people per kilometer^2
Area = a = 23 km^2
So,
The region that covers 23 km^2 has population of 1380 people
Keywords: Population, Density
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Answer:
14.50 cm
Step-by-step explanation:
Based on the midsegment theorem:
The midsegment connecting two sides of triangle is parallel to the third side of the triangle and the length of the midsegment line is half the length of the third side parallel to the midsegment.
From the diagram ;
QR // ZY
XY = 2 * 2.93 = 5.86
RS // XZ
XZ = 2 * 2.04 = 4.08
QS // XY
XY = 2 * 2.28 = 4.56
The perimeter :
(XY + XZ + XY)
5.86 + 4.08 + 4.56
= 14.50 m
