A tectonic plate in earth's crust moves at a constant rate of 4 centimeters per year. In a different part of the world, another
tectonic plate moves at a constant rate of 30 centimeters in ten years. Is this a proportional relationship? please help
1 answer:
Answer:
no
Step-by-step explanation:
if it is proportional it will equal to 4 x 10= 40cm
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15 is the answer it is correct can
Answer:
x = 37
Step-by-step explanation:
- Key -
Black tiles = x
Purple tiles = x+50
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Total = x + x+50 + 5x = 400
⇒ 7x + 50 = 400
⇒ 7x = 400-50 = 350
⇒ x = 350/7
⇒ x = 50
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