No, Yes, No, Yes
using the laws of exponents
(1)
()³ =
4³ × 4³ =
≠
→ No
(2)
()^4 =
×
=
→ Yes
(3)
= (6 × 3 )^8 =
×
≠
×
→ No
(4)
= (4 × 5 )³ = 4³ × 5³ → Yes
Are these ratios proportional? prove it 5/9 = 25/18 the / are fractions
2 answers:
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They are essentially asking us to solve:
Solving this equation for x tells us that it will take around 80.1 years for the materials in the vault to reduce to 357 pounds.