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3 years ago

10 Points + brainliest. 7a + 50 = 247

Mathematics

2 answers:

erik [133]3 years ago

7 0

Answer:

a= 190

Step-by-step explanation:

7a+50=247

=7a = 247-50

= a = 197-7

= a = 190

Oliga [24]3 years ago

4 0

Answer:

a = 28.14 (Estimated)

Step-by-step explanation:

7a + 50 = 247

=> 7a = 197

=> a = 28.1428571429 (Using Calculator)

=> a = 28.14 (Estimated)

Hoped this helped.

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<h3>How many years would it take to re-create the Sahara Desert?</h3>

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Volume = Surface area * Depth

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A small dump holds 20.5 m^3 for 30 seconds.

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Time = (9,400,400 * 150,000,000 m^3)/(20.5 m^3 per 30 seconds)

Evaluate the product and quotient

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So, we have:

Time = 2.0635024e+15 * 3.171e-8 year

Evaluate the product

Time = 65433661.104 years

Approximate

Time = 65433661 years

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