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nirvana33 [79]
2 years ago
12

one estimate for the rate at which natural process can replace topsoil that has been eroded is about 2 millimeters per year at t

his rate how long would it take to form 10 to centimeters of new topsoil​
Mathematics
1 answer:
bulgar [2K]2 years ago
7 0

Answer:

50 years

Step-by-step explanation:

First convert millimeters to centimeters. 2 millimeters is equivalent to 0.2 centimeters. Then divide 10 by 0.2. Answer should be 50

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<img src="https://tex.z-dn.net/?f=%20%7Ba%20%7D%5E%7B2%7D%20%20%2B%208a%20%2B%2015%20%3D%200" id="TexFormula1" title=" {a }^{2}
NISA [10]

Answer:

a = - 5, a = - 3

Step-by-step explanation:

Given

a² + 8a + 15 = 0 ← in standard form

(a + 3)(a + 5) = 0 ← in factored form

Equate each factor to zero and solve for a

a + 3 = 0 ⇒ a = - 3

a + 5 = 0 ⇒ a = - 5

8 0
3 years ago
sabine and jack know that 1 kilogram = 2.2 pounds and 1 pound = 0.454 kilogram. they each write an expression to convert 50 poun
zzz [600]

Answer:

50 pounds =  22.7 kilograms

Step-by-step explanation:

Yes both are correct

Sabine :

2.2 pounds =   1 kilogram

     1 pound = 1/ 2.2 kilogram = 0.454 kilogram

50 pounds = 50 * 0.454 =22.7 kilograms

5 0
3 years ago
Helppppp what is 48 times the power of x , If x= 1/5
sweet-ann [11.9K]

on my calculator 48^1/5 equals 2.168943542

but out of a fraction 1/5 equals 0.2  ( they both equal the same thing)


2.168943542

6 0
3 years ago
Read 2 more answers
LMNO is a parallelogram. If NM = x + 15 and OL = 3x + 5, find the value of x
Sidana [21]
<span>LMNO is a parallelogram
so NM = OL
x + 15 = 3x + 5
solve for x
x - 3x = 5 - 15
-2x = -10
   x = 5

Answer
x = 5</span>
5 0
3 years ago
Read 2 more answers
Rusty walked 5 miles in 65 minutes. How long did it take him to walk 2 miles?
Ronch [10]

Answer:26 Minutes

Step-by-step explanation:

5/25 = 13 13 times 2 equals 26

4 0
3 years ago
Read 2 more answers
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