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lukranit [14]
3 years ago
11

Tommy went to the mall and bought a shirt for $10 and a pair of pants for $30. Their was a sales tax of 7% on his purchase. How

much did he pay in total?
Mathematics
1 answer:
Sever21 [200]3 years ago
7 0

Answer:

42.8

Step-by-step explanation:

(10+30)*1.07=42.8

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Answer:

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164.32 earth year

Step-by-step explanation:

distance of Neptune, Rn = 4.5 x 10^9 km

distance of earth, Re = 1.5 x 10^8 km

time period of earth, Te = 1 year

let the time period of Neptune is Tn.

According to the Kepler's third law

T² ∝ R³

\left ( \frac{T_{n}}{T_{e}} \right )^{2}=\left ( \frac{R_{n}}{R_{e}} \right )^{3}

\left ( \frac{T_{n}}{1} \right )^{2}=\left ( \frac{4.5\times10^{9}}}{1.5\times10^{8}}} \right )^{3}

Tn = 164.32 earth years

Thus, the neptune year is equal to 164.32 earth year.

Step-by-step explanation:

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3 years ago
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3 0
3 years ago
Need help <br> Value of n2(m+r)if m=3,n=2,r=4
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g100num [7]
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