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jasenka [17]
3 years ago
6

What is half of 15/16 3x?

Mathematics
1 answer:
serg [7]3 years ago
7 0
1 13/32x.

15/16x3= 45/16. Half of 45/16 = 45/32 = 1 13/32x
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You and your friend each collect rocks and fessis your friend collects three times as many roots and half as many fossils as you
n200080 [17]

Answer:

Number of rocks and fossils collected by you is <u>1 and  24</u> respectively

Number of rocks and fossils collected by your friend is <u>3 and 12 </u>respectively

Step-by-step explanation:

Let  the number of Rocks you collect be x

Let  the number of Fossils you collect be y

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x + y = 25

x = 25 - y------------------------------(1)

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This can be written as

3x + y (1/2) = 15

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Substituting (1) in (2)

3(25 - y) + (y/2) = 15

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Grouping the like terms we get,

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60 = ( 6y - y /2)

60 x 2 = 6y -y

120 = 5y

y = 120/5

y = 24

Substituting  y value in equation(1) we get

x = 25 - 24

x= 1

y= 24

Friends collects 3 times rock

so collects 3x =3(1) = 3rocks

Also he collects half as many fossils

That is

y/2 = 24/2 = 12 fossils

<u><em>Hope this help you! :)</em></u>

5 0
2 years ago
What is -3x^2-4x-4=0
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Answer:

<h2>no real solution</h2>

Step-by-step explanation:

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\text{We have}\ a=3,\ b=4,\ c=4.\\\\\text{Substitute:}\\\\b^2-4ac=4^2-4(3)(4)=16-48=-32

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