What is the value of x? 9x+2y=-11 X-2y=-19
1 answer:
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answer is attached below
Answer:
The error was on the diameter. The tire diameter was supposed to be;
4.6+15+4.6=24.2
The student only includes one sidewall width
Step-by-step explanation:
The question is on circumerence of a tire
Here we apply the formulae for circumference of a circle
C=2 ×r or
× d where r is the radius of the tire and d is the diameter
Finding d= diameter of rim + sidewall to the right +sidewall to the left
d= 15+4.6+4.6=24.2 inches
r=d/2= 12.1
C=2 ××r
C=2×3.14×12.1 =75.99 Inches