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VladimirAG [237]
2 years ago
13

Julio and Tina open bank accounts on the same day. Julio opens his with $100 and

Mathematics
1 answer:
iren2701 [21]2 years ago
4 0

Answer:

you would need just 4 equation

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One canned juice drink is 25% orange juice another is 10% orangw juice. How many liters of each should be mixed together in orde
Vsevolod [243]

Answer:

There should be 10 l of 25% orange juice and 5 l of 10% orange juice.

Step-by-step explanation:

Let the amount of the 25% orange juice be "x", while the amount of the 10% one be "y". The sum of these must be equal to 15 l, therefore:

x + y = 15

The sum of the concentration of juice on each can must be equal to the final product, therefore:

25\%*x + 10\%*y = 15*20\%\\0.25*x + 0.1*y = 3

We can now solve the system of equations as shown below:

\left \{ ({{x + y=15})*(-0.1) \atop {0.25*x + 0.1*y=3}} \right. \\\left \{ {{-0.1*x - 0.1*y=-1.5} \atop {0.25*x + 0.1*y=3}} \right. \\-0.1*x + 0.25*x = 3 - 1.5\\0.15*x = 1.5\\x = \frac{1.5}{0.15} = 10\\y = 15 - x = 15 - 10 = 5

There should be 10 l of 25% orange juice and 5 l of 10% orange juice.

4 0
3 years ago
What is the solution of the system? Use any method.<br><br> 3x + 2y = 7<br> y = –3x + 11
Gnom [1K]

Answer:

(5,-4)

Step-by-step explanation:

SOLVE BY SUBSTITUTION:

STEP 1: Replace all occurrences of y with -3x+11 in each equation.

-3x+22=7\\y=-3x+11

STEP 2: Solve for x in the first equation.

x=5\\y=-3x+11

STEP 3: Replace all occurrences of x with 5 in each equation.

y=-4\\x=5

6 0
2 years ago
Fraction 1 whole minus 3 8 ths
lys-0071 [83]
5/8 or .625 is the answer                
5 0
3 years ago
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Start time: 6:30 PM<br> start time: 2 hours 18 min <br> end time:________
Bingel [31]
Start time: 6:30 PM
<span>start time: 2 hours 18 min 
end time: 8:48 PM</span>
4 0
3 years ago
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What is 353% as a decimal??
Brilliant_brown [7]

Answer: Your answer is<u> 3.53</u> as a Decimal.

Hope this helps!

3 0
2 years ago
Read 2 more answers
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