62. A chemist mixes 15 liters of 40 percent acid solution and 25 liters of 20 percent acid solution.

Mathematics

1 answer:

Rzqust [24]3 years ago

7 0

40% of 15 L = 6 L of acid

20% of 25 L = 5 L of acid

This means the mixture contains a total of 11 L of acid, and with a total volume of 15 L + 25 L = 40 L, that means the mixture is at a concentration of

(11 L acid) / (40 L solution) = 0.275 = 27.5%

You might be interested in

If 4% of packages get lost in the mail than how many packages will get lost if 3,000 packages are shipped

salantis [7]

Answer:

250

Step-by-step explanation:

divide 1000 by .4

8 0

4 years ago

Read 2 more answers

What is the expanded and word form for 67.943

adell [148]

Word : Sixty-Seven and Nine Hundred Forty-Three Thousandths
Expanded : 60 + 7 + 0.9 + 0.04 + 0.003

8 0

3 years ago

HELP PLS! A boat is heading towards a lighthouse, whose beacon-light is 102 feet above the water. From point AA, the boat’s crew

KatRina [158]

Answer:

Distance from point AA to point BB = 189.3 feet

Step-by-step explanation:

Let the distance from point AA to the base of the lighthouse be represented by x, and the distance from point BB to the base of the lighthouse be represented by y. So that;

distance from point AA to point BB = x - y

To determine the value of x, applying the required trigonometric function;

Tan θ = $\frac{opposite}{sdjacent}$