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Paladinen [302]
3 years ago
7

If about 1/40 of the earths water is fresh water. About 3/10 of the earths fresh water is ground water. What fraction of the ear

ths water is ground water.
Mathematics
2 answers:
Alex17521 [72]3 years ago
6 0

Answer:

3/400

Step-by-step explanation:

Let w represent earth's water

let f represent fresh water and let g represent ground water

f = \frac{1}{40}w

g =\frac{3}{10}f = \frac{3}{10}(\frac{1}{40}w)\\ \\g = \frac{3}{400}w

Therefore, fraction of earth's water,w, that is ground water = 3/400

NISA [10]3 years ago
5 0

Answer: Ground water is 3/400 of earth's water

Step-by-step explanation:

Let x represent earth's water,

F represent earth's fresh water, and

G represent earth's ground water.

The statement can then be expressed as follows:

About 1/40 of the earth's water is fresh water:

(1/40)x = F

About 3/10 of the earths fresh water is ground water:

Say: (3/10)F = G

=> (3/10)(1/40)x = G

(3/400)x = G

Therefore, ground water is 3/400 of the earth's water.

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1 year ago
ohan found that the equation –2|8 – x| – 6 = –12 had two possible solutions: x = 5 and x = –11. which explains whether his solut
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5 0
3 years ago
Find the value for x​
d1i1m1o1n [39]

Answer:

Value of x --> 15°

<u>Step-by-step explanation:</u>

(2x + 60°) and 6x lie on a straight line. So, they form a linear pair. Their sum gives 180°.

---> (2x + 60°) + 6x = 180°

     2x + 60° + 6x = 180°

     8x + 60° = 180°

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     8x = 120

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<h3><u>x equals 15°</u></h3>
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2 years ago
one teacher wants to give each student 7/8 of a slice of pizza. If the teacher has 7 slices of pizza then how many students will
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Answer:

The teacher can hand out pizza to 8 students.

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The teacher can hand out pizza to 8 students.

4 0
3 years ago
Read 2 more answers
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