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puteri [66]
3 years ago
9

Movie Theater Madness

Mathematics
1 answer:
Alona [7]3 years ago
7 0
There isn’t enough information to answer this question
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How many liters of a 10% alcohol solution must be mixed with 90 liters of a 60% solution to get a 30% solution?
Setler [38]
Since 10% = 0.10 by moving the decimal two spots to the left, we can say that 0.10L is the amount of alcohol with 10% concentration in L liters. Similarly, 0.60L is 60% for L liters and 0.30L is the amount of liters with 30%. If the amount of 10% alcohol solution in liters is x and the 60% in y, we get 0.10x+0.60y=0.30L due to that the liters add up to get a 30% amount of alcohol (this equation represents the amount of alcohol). Next, x+y=L. Since we know that we have 90 liters of 0.60, y=90 and we have 
0.10x+54=0.30L 
x+90=L. Plugging x+90 for L, we get 0.10x+54=0.3(x+90)=0.3x+27. Subtracting 27 and 0.1x from both sides, we get 0.2x=27. Next, we can multiply both sides by 5 (since 1/0.2=5) to get x=135 liters
4 0
4 years ago
Solve the equation for x.<br><br><br> x2 = 100
ddd [48]
X^2 = 100
x = √100
x = 10

Hope This Helps You!
8 0
3 years ago
Read 2 more answers
Mr. Mole's burrow lies 5 meters below the ground. He started digging his way deeper into the ground, descending 3 meters each mi
ss7ja [257]

Answer:

See the graph attached

Step-by-step explanation:

Every minute = 3m

At time zero, the depth is zero

Giving coordinates of (0, 0)

At time 1 minute, the depth is 3m

Giving coordinates of (1, 3)

This gives a linear equation

Slope = Δy/Δx

= (3-0)/(1-0)

= 3/1

= 3

Take any general point (x, y)

The equation of the line is:

(y-0)/(x-0) = 3

y/x = 3

y = 3x

See the plot which goes up to a depth of 5m

8 0
3 years ago
A quadrilateral can be constructed with four obtuse angles. <br> True<br> False
nignag [31]
Yes it is true for example like a parrelogram that has 2 obtuse angels so which means it is true
7 0
2 years ago
What is the measure of T and U
andreev551 [17]
T-> 180-2*(54)= 72° ……
5 0
3 years ago
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