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astraxan [27]
3 years ago
8

HELP ASAP PLZ!!!!!!!!!!!!!! THANKS IN ADVANCED :)

Mathematics
1 answer:
taurus [48]3 years ago
4 0
I think its the 30x + 20

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What is x and y equal in: -2X-y=3 and x+2y=4 (find x and y using elimination)
makvit [3.9K]
-2x-y=3    ...(1)
x+2y=4    ...(2)
multiply (2) by 2 and add to (1)
-2x-y+2x+4y=3+8
3y=11
y=11/3
from (2)
x=4-2y=4-2(11/3)
or x=4-(22/3)
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3 years ago
There is a bag filled with 4 blue and 5 red marbles.
kkurt [141]

Answer:

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Step-by-step explanation:

There are 4 blue, 5 red and total of 9 marbles.

<u>If two marbles are taken and we are looking for exactly one red, then it is:</u>

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<u>Find the probability of each case:</u>

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  • P(b, r) = 4/9*5/8 = 5/18

<u>Probability of exactly one red:</u>

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6 0
3 years ago
WHAT IS 659 ROUNDED TO THE NEARST HUNDRED
guajiro [1.7K]

Answer: the answer is 700

5 0
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What is bigger 1/5 or .29
n200080 [17]
.29 is bigger.

If you convert 1/5 to a decimal (or simply solve it!) you will end up with .2 or .20
Which is obviously smaller than .29
3 0
3 years ago
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A choir teacher is dividing 48 sopranos and 32 altos into singing groups. He wants each
Gekata [30.6K]

Answer:

32

Step-by-step explanation:

x(48 - 2x) = 32

Hope it helps.

6 0
2 years ago
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