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inysia [295]
3 years ago
13

Please help me with this

Mathematics
1 answer:
Mumz [18]3 years ago
5 0

Answer:

x=3/4

Step-by-step explanation:

You need to isolate the variable. First subtract 3 from both side, then add 1x to both sides. You will end up with 1 1/3x=1. After that divide both sides by 1 1/3.

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How many gallons each of 20​% alcohol and 10​% alcohol should be mixed to obtain 10gal of 11​% ​alcohol?
Scilla [17]

Answer:

20​% alcohol = 1 gal

10​% alcohol = 9 gal

Step-by-step explanation:

Let

x = 20​% alcohol

y = 10​% alcohol

x + y = 10 (1)

0.20x + 0.10y = 10*0.11

0.20x + 0.10y = 1.1 (2)

From (1)

x = 10 - y

Substitute x = 10 - y into (2)

0.20x + 0.10y = 1.1

0.20(10 - y) + 0.10y = 1.1

2 - 0.20y + 0.10y = 1.1

- 0.20y + 0.10y = 1.1 - 2

-0.10y = -0.9

y = -0.9/-0.10

y = 9 gal

substitute y = 9 into (1)

x + y = 10

x + 9 = 10

x = 10 - 9

x = 1 gal

20​% alcohol = 1 gal

10​% alcohol = 9 gal

6 0
3 years ago
5
Aleonysh [2.5K]
2 pounds per person
5 0
2 years ago
Round to the nearest 10.<br> 473 <br>91<br>889<br> 124​
Novosadov [1.4K]

470

90

890

120

hope this helped :)

please mark as brainliest !!

3 0
3 years ago
Read 2 more answers
The farmer loaded 525 potatoes into 7 boxes. He put the same number of potatoes in each box. How many potatoes are in each box?
Lunna [17]

Answer:

75

Step-by-step explanation:

525/7=75

5 0
3 years ago
Marvin Martian, Aly Alien, and Hank Human are all looking for a hidden spaceship. Their probabilities of
never [62]

Answer: Aly , Marvin, Hank

Step-by-step explanation:

Aly has the lowest with 20, Marvin has 30, and hank has 50. it says least to mostly likely to win

7 0
3 years ago
Read 2 more answers
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