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Finger [1]
1 year ago
5

How much water must be added to 1 litre of 5% cordial mixture to produce a 4% cordial mixture?

Mathematics
1 answer:
kondaur [170]1 year ago
8 0

Answer:

X=1/4L OR 0.25L OR 250ml.

Step-by-step explanation:

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4x+3 =23<br>2x - 10 = -32<br>- 4x + 1 = -27<br>6x - 2 = -20​
Scrat [10]

Answer:

1)x = 5

2)× = -11

3)x = 7

4)x = 3.66

7 0
2 years ago
What is equal to x in x - 8pi = pi?
pochemuha

Add 8π to both sides of the equation to get:

x - 8\pi + 8\pi = \pi + 8 \pi

\boxed{x = 9 \pi}


We have found that x = 9π. Remember that in solving problems like these with pi that it can often be helpful to treat pi as a variable.

8 0
2 years ago
Suppose that a person with a push mower can mow a large lawn in 5 ​hours, whereas the lawn can be mowed with a riding lawn mower
Reil [10]
------------------------------------------------------------------
Push Mower
------------------------------------------------------------------
It takes 5 hours to complete the job
1 hour = 1/5 of the job

------------------------------------------------------------------
Riding Lawn Mower
------------------------------------------------------------------
It takes 3 hours to complete the job
1 hour = 1/3 of the job

------------------------------------------------------------------
Push Mower + Riding Lawn Mower
------------------------------------------------------------------
1 hour = 1/5 + 1/3 
1 hour = 3/15 + 5/15 
1 hour = 8/15 of the job.

------------------------------------------------------------------
Calculate time needed to complete
------------------------------------------------------------------
8/15 of the job takes 1 hour
8/15 of the job = 1 hour 

------------------------------------------------------------------
Divide by 8/15 on both side
------------------------------------------------------------------
8/15 ÷ 8/15 of the job = 1 ÷ 8/15 hour
Whole of the job = 1 x 15/8 hours
Whole of the job = 15/8 hours
Whole of the job = 1 7/8 hours

------------------------------------------------------------------
Answer: 1 7/8 hours
------------------------------------------------------------------

6 0
1 year ago
Amy is 1 year older than Ben. The sum of their ages is greater than 33 and less than 45 Find all possible ages of Ben
Ainat [17]

Answer:

17, 18, 19, 20, 21

Step-by-step explanation:

4 0
1 year ago
The commission Gary earns is proportional to the cost of the shoes he sells. Gary earns 15% in commission for every $150 worth o
barxatty [35]
C = $150x * .15 is the formula
6 0
2 years ago
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