The mountain will be at 80mm long in 50 years because 50 times 1.6mm equals 80
Answer:
x=25
Step-by-step explanation:
5x-5+ 2x+10 =180
2x-5x = 10+5
3x= 15
x=5
5(5)-5+ 2(5) +10 =180
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Answer:
440,000
Step-by-step explanation: