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AURORKA [14]
3 years ago
9

The integer between - 2.8 and -1.4 is . Check

Mathematics
2 answers:
kolbaska11 [484]3 years ago
7 0

Answer:

Step-by-step explanation:

-2

Integer is a whole number.

Dovator [93]3 years ago
4 0
-2 as that’s the closest whole number
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How many ounces of 50% alcohol solution must be mixed with 80 ounces of a 20% alcohol solution to make a 40% alcohol solution?
Paraphin [41]
X = amount of 50% solution
y = total amount after mixing

Note that the amount of alcohol in the 20% solution is 80 (0.2) = 16 oz.

We have 2 unknowns, so we need 2 equations:
first, we can write the equation for the total volume:
y = x + 80

next, apply the percentages to get an equation for the amount of alcohol:

0.4 y = 0.5 x + 16

Finally, solve the pair of equations (in this case, by substitution of the 1st into the second:
0.4 (x + 80) = 0.5x + 16
0.4 x + 32 = 0.5X + 16
rearrange and combine like terms:
0.1x = 16
x = 160
from the 1st equation:
y = 160 + 80 = 240
8 0
2 years ago
Help please i’ll mark brainlest
bogdanovich [222]
X = 14
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I hope I could help!
5 0
3 years ago
Read 2 more answers
Whats the indicated operation?
Black_prince [1.1K]
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answer 5/11
you got it correct
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Which number line best represents the solutions to 7 < -2x + 3?
Natasha2012 [34]

Answer:

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Hope this helps


4 0
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