1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pogonyaev
2 years ago
12

Please help! Fred mixes a solution using two types of solutions: 0.60 liters containing 10% alcohol and 0.40 liters containing 3

5% alcohol.
What is the alcohol concentration of the mixed solution?

Mathematics
2 answers:
noname [10]2 years ago
7 0

Answer:

20%

Step-by-step explanation:

Total Litres in mixture=(0.60+0.4)=1 Litre

alcohol in first portion:=0.10(0.60)=0.06 Litres

alcohol in second portion:=0.35(0.40)=0.14 Litres

Total alcohol in mixture = 0.06 +0.14 = 0.20

% of alcohol in mixture:

                                          \frac{0.2}{1} (100) = 20%%

inna [77]2 years ago
7 0

Answer: 20%. Based on the given conditions, formulate:: 35% * 0.4 + 0.6 * 10% / 0.4 + 0.6Calculate the product

You might be interested in
Events A and B are disjointed. P(A) = 4/11; P(B) = 3/11, P(A and B)= 2/11 . Find P(A or B).
Anettt [7]

Answer:

P(A\:or\:B)=\frac{7}{11}

Step-by-step explanation:

If the two events are disjoint, then P(A or B)=P(A)+P(B).

We were given that:

P(A)=\frac{4}{11}

and

P(B)=\frac{3}{11}

This implies that:

P(A\:or\:B)=\frac{4}{11}+\frac{3}{11}

We simplify the right hand side to obtain:

P(A\:or\:B)=\frac{4+3}{11}

P(A\:or\:B)=\frac{7}{11}

8 0
3 years ago
Rationalise the denominator <br>6/3√7​
Alexeev081 [22]

Answer:

Step-by-step explanation:

=6/3\sqrt{7} *3\sqrt{7}/3\sqrt{7}

=6*3\sqrt{7}/(3\sqrt{7})^2

=18\sqrt{7}/9*7

=18\sqrt{7}/63

=2\sqrt{7}/7

5 0
3 years ago
When x = 8, y = 20. Find y when x = 42
snow_tiger [21]
The answer that I got was y=105
     
Hope this helps!
3 0
4 years ago
Read 2 more answers
X
Fynjy0 [20]

The total is 219 miles.

He rides at 38 mph and walks at 4 mph for 8 hours. If he rides for h hours, he walks for 8-h hours.

Set them equal to each other:

219=38h+4(8-h)

Solve and you should get 5.5 hours on the bicycle and 2.5 hours walking.

4 0
3 years ago
HELP explain step by step how to do this problem I do not understand
elena-14-01-66 [18.8K]
Since it's angle side angle, just use law of sine,
a/sin(A)=c/sin(C)
find C first by subtracting 16 and 72 from 180
C=92
get c is about 58
5 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate the expression for the value of x=-3. (If not possible, state the reason)
    12·1 answer
  • 6. Find the missing value. Show your work. Round to the nearest hundredth.
    6·1 answer
  • Evaluate each expression. Show step by step<br> 5(4-1)
    8·2 answers
  • 1. List all the factors of 24.​
    15·1 answer
  • How do I find the solutions to 8x^3-x+7
    14·1 answer
  • Please help will mark Brainly!
    15·1 answer
  • 876.34 rounded to the nearest thousandth
    13·2 answers
  • Find the volume of a cube that will hold sixty-four 4.19 in^3 toy bouncy balls
    7·1 answer
  • 12ad3<br> and which term are like terms?<br><br> 15a3d<br><br> 10ad<br><br> 12d3<br><br> 3ad3
    6·2 answers
  • UT.15:02
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!