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Alja [10]
4 years ago
8

Show an equation and a solution. How much pure antifreeze must be added to 12 L of a 40% solution to obtain a 60% solution. (Rem

ember that pure antifreeze is 100% = 1.)
Mathematics
1 answer:
erastova [34]4 years ago
5 0
6 litres because ...
12/40 = 1 ratio them x 60 for 60% which is 18 and since you have 12l already just do 18-12 = 6
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Yoga fun charges a $62 starting fee plus$11 per class. Yoga for all charges no starting fee and $20 per class for how many class
Artemon [7]

Hey!

-------------------------------------------------

Yoga Fun: 62 + 11 = 73 (y-intercept)

Yoga For All: 20 (y-intercept)

-------------------------------------------------

First Class:

Yoga Fun: $73

Yoga For All: $20

Second Class:

Yoga Fun: $84

Yoga For All: $40

Third Class:

Yoga Fun: $95

Yoga For All: $60

Fourth Class:

Yoga Fun: $106

Yoga For All: $80

Fifth Class:

Yoga Fun: $117

Yoga For All: $100

Sixth Class:

Yoga Fun: $128

Yoga For All: $120

Seventh Class:

Yoga Fun: $139

Yoga For All: $140

-------------------------------------------------

Answer:

So we can see that the cost won't be exactly the same but it will be roughly the same when it's the sixth class.

-------------------------------------------------

Hope This Helped! Good Luck!

3 0
3 years ago
Graph the function y=-3/4(x+3)(x+7)
Katena32 [7]

Answer:

Step-by-step explanation:

4 0
2 years ago
Which of the following expressions is a factor of the polynomial x^2 + 3/2x -1
yanalaym [24]
x^2+\dfrac{3}{2}x-1=x^2-\dfrac{1}{2}x+2x-1=x\left(x-\dfrac{1}{2}\right)+2\left(x-\dfrac{1}{2}\right)\\\\=\left(x-\dfrac{1}{2}\right)(x+2)\\\\Answer:\ x-\dfrac{1}{2}
5 0
3 years ago
Read 2 more answers
4 + 3(4 - 2)^2 - 3(3 - 2)^3
Dmitriy789 [7]
PEMDAS

4+3(4-2)^2 - 3(3-2)^3
4+3(2)^2 - 3(1)^3
4+3(4) - 3(1)
4+12-3
16-3
13

The answer is 13
7 0
3 years ago
so…I need help with this! It would be very helpful if you also put the steps so I can write them down in my notebook so I can kn
skelet666 [1.2K]
Okay so you plug in 6.7 to M because that’s how far you are.
You are looking for T because it says seconds after.
So 6.7=t/4.6
then you multiply both sides by 4.6.
6.7x4.6=30.82.
So your answer is 30.82
8 0
4 years ago
Read 2 more answers
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