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Anarel [89]
3 years ago
15

A chemist is mixing a 50% salt solution with an 18% salt solution to make 40 L of a new solution that will contain 30% salt. How

much of each of the original solutions should the chemist use?
Mathematics
1 answer:
Karolina [17]3 years ago
3 0

Answer:

See below

Step-by-step explanation:

Sum of ingredients = sum of final solution

.50 x      where x =   50 percent amount    then 40 - x = 18% amount

.50 x    + .18(40 - x)   =   .30 ( 40 )

.50 x   + 7.2 - .18x  =   12

.32x  = 4.8

x = 15 L of 50%     25 liters of 18%

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Here is the histogram of a data distribution. What is the shape of this distribution?
inna [77]

Answer:

This histogram is unimodal skewed. There are two parts to this answer. The first part has to do with the number of modes. This would be the item that is occurring the most frequently. In this case the mode is only 4. It is occurring more than any other.

The second part of this has to do with the distribution of the data as it is displayed on the histogram. There are 4 pieces of data that are only occurimg one time on the right of the histogram. We call this skewing the data. When both sides looks almost the same we say it is symmetric.

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
How do you do this? I need help
hjlf
Hi,

8 Pckts  each has 500 g weight .Total weight would be 8*500=4000g
and she arranged them into 3 boxes.

assume those three boxes are X,Y,Z first,second,thrid respectively.
X+Y+Z=4000g--------------------1

then according to the statement first box is twice heavy as second one
means X=2Y----------------2

and thrid box is 60g heavier than second box.
Z=Y+60--------------------3
put those values in to eq 1

2Y+Y+Z=4000
3Y+Y+60=4000
4Y=4000-60
4Y=3940
Y=985
second box weight is 985 gram
8 0
4 years ago
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Draw the image of \triangle ABC△ABCtriangle, A, B, C under a dilation whose center is PPP and scale factor is \dfrac{1}{2}
Phantasy [73]
Is there something like a picture so I can understand better?
4 0
4 years ago
Find the percent change from the first value to the second 50;30
Alex787 [66]

Answer:

-40%

Step-by-step explanation:

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OV = old value

percent change = (NV - OV)/(OV) × 100%

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percent change = -20/50 × 100%

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2 years ago
The highest common factor of 10 and 18
Nataliya [291]

Answer:

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18: 1,18,2,9,3,6,

Look which is common in both of these and both of them have 2 in common.

7 0
3 years ago
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