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
Papessa [141]
3 years ago
13

For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment,bobby dissolve

d 2.0 pounds of salt in 7.0 pints of water. Which person made a more concentrated salt solution? Explain. Use 1L=2.11 pints. Round your answer to the nearest hundredth
Mathematics
1 answer:
Vesnalui [34]3 years ago
7 0
Marcia dissolved 1 kg of salt in 3 litres of water
Bobby dissolved 2 pounds of salt in 7 pints of water
We know that
1 litre = 2.11 pints
We also know that
1 pound = 0.4535 kg
Now if we take the case of Bobby, and convert the pound to kg then
1 pound = 0.4535 kg
2 pounds = (0.4535 * 2) kg
 <span>                 = 0.907 kg</span> <span>               
                 = 0.91 kg</span>
Bobby dissolved the salt in 7 pints of water
We know
2.11 pints = 1 litre
Then
7 pints = (7/2.11) litre
 <span>            = 3.32 litres</span>
So we now see that Bobby has dissolved 0.91 kg of salt in 3.32 litres of water
Marcia dissolved 1 kg of salt in 3 litres of water.
So Marcia has made a more concentrated solution since she has dissolved more salt in less amount of water whereas Bobby has dissolved less amount of salt in more water.



You might be interested in
Complex Numbers<br><br><br><img src="https://tex.z-dn.net/?f=%5Cfrac%7B-1-2i%7D%7B-2%2Bi%7D" id="TexFormula1" title="\frac{-1-2i
s2008m [1.1K]
Answer is i
also if you have more of these problems use (socratic) it works wonders!
6 0
3 years ago
Simplify ( 1/2A + 1/2B )^2
zysi [14]
Notice that both A and B are multiplied by (1/2).

Thus, the given expression can be re-written as [(1/2)(A+B)]^2.

Square the (1/2) and the (A+B) separately, and then multiply together the resulting squares:

(1/4)(A^2 + 2AB + B^2)

4 0
3 years ago
Read 2 more answers
Luke receives an electric bill of $84.21\$84.21$84.21 for the month of April. The electric company charges $0.14\$0.14$0.14 per
tigry1 [53]

Answer:

The answer would be 20.05 hours per day.



4 0
3 years ago
Read 2 more answers
What is the solution to the equation below? Round your answer to two decimal places. 3e2x + 12 = 42
Shkiper50 [21]

Answer:

X= 5.52

Step-by-step explanation:

1. Solve the equation:

e×2x + 12= 42

x=15/e

2. Round x=15/e to the required place

x=5.52

5 0
2 years ago
Can y’all help me with 7 - 12 showing work. Will be giving Brainliest:)) and for 13 and 14 I need help too :)) Help please :((((
Mekhanik [1.2K]
7= 16 lb >16 Oz 16x16=256
8= 1500 lb < 2T 2000+2000
9= 3T>5999 lb 2000x3
10= 1600 Oz > 10 lb 1600÷16=100
11= 19 lb>300 Oz 19x16=304oz
12= 8 oz= 1/2 lb 16 ounces = 1 pound 1/2=8
13= pounds=6000 tons= 1, 1.5
4 0
3 years ago
Other questions:
  • Please answer question now
    14·1 answer
  • a monkey and his owner have collected 5000 coconuts. they want to sell their coconuts in the nearby city 1500 miles away. the mo
    13·1 answer
  • What number is multiplied 4 times to get 81
    14·2 answers
  • 8x-2+x=14 <br> How do I simplify
    11·2 answers
  • L= 12 cm and M= 5 cm. What is n?
    10·2 answers
  • iionel finished four rounds of a golf tournament . his combined total score after playing all four rounds was -10. his scores on
    7·1 answer
  • Find the midpoint between the two points (-4,4) and (-2,2)
    6·1 answer
  • Here is a rectangle ABCD.
    15·1 answer
  • Perimeter of a semi circle with a diameter of 3.5m​
    10·1 answer
  • The actual income for this month has been reduced by $200. How can this budget be modified so there will be a positive actual ne
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!