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
frozen [14]
3 years ago
5

Emily added 5 grams of water into 20 grams of 50% salt solution. She made ___ grams of ___% salt solution.

Mathematics
1 answer:
yaroslaw [1]3 years ago
8 0
For the first blank, the answer should be the total weight of the solution which is derived from adding 5 grams and 20 grams. The answer would be,

        T = 5 + 20 = 25 grams

For the second blank, the % solution is derived by dividing the amount of salt initially by the total amount of the resulting solution. This is as shown below.

      C = ((20 x 0.5) / 25) x (100%)
 
Simplifying,
      C = 40%

Answers: 
    a. 25 grams
    b. 40%
You might be interested in
If each of the cubes in a Rubik's Cube represented 1 cubic inch, what would be the volume of the Rubik's Cube?
kicyunya [14]

Answer:

The volume of the Rubik's Cube is 27 in^3

Step-by-step explanation:

Each face of a Rubik's Cube has 3x3 cubes, then each face has 9 small cubes.

We can think of a Rubik's Cube as 3 pieces, such that each piece has 9 small cubes on it, and the 3 pieces are: Front side, middle part, back part.

Then the total number of small cubes on a Rubik's cube is 9*3 = 27 small cubes.

Now we know that each one of these small cubes has a volume of 1 in^3

Then the volume of 27 of these cubes is 27 times the volume of a single smaller cube, then the volume of the Rubik's Cube is:

V = 27*( 1 in^3) = 27 in^3

5 0
3 years ago
A salesperson obtained a systematic sample of size 25 from a list of 500 clients. To do​ so, he randomly selected a number from
dangina [55]

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we have given that

First term = 13

Increase each time = 20

Number of clients = 25

So, it forms an arithmetic progression:

So, 25 th term would be

a_{25}=a+(n-1)d\\\\a_{25}=13+(25-1)\times 20\\\\a_{25}=13+24\times 20\\\\a_{25}=13+480\\\\a_{25}=493

Hence, list would look like 13,33,............493.

Therefore, Option 'D' is correct.

3 0
3 years ago
Simplify 7(2x+y)+6(×+5y)
iris [78.8K]

Simplify, <em>7(2x+y)+6(x+5y).</em>

<em>a:</em> <em>20x+37y</em>

<em> (7 • (2x + y)) +  6 • (x + 5y) </em>

<em>Step  2  : </em>

<em>Equation at the end of step  2  : </em>

<em>  7 • (2x + y) +  6 • (x + 5y) </em>

<em>Step  3  : </em>

<em>Final result : </em>

<h3><em> </em><em> 20x + 37y</em></h3>

Thanks,

<em>Deku ❤</em>

4 0
3 years ago
The side length of a cube is represented by s as shown in the equation below.
Gekata [30.6K]

Answer:

7 and -7

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
The table below shows field goal statistics for three different kickers
FromTheMoon [43]

Answer:

<h2>From least to greatest: C, B and A</h2>

Step-by-step explanation:

To order each Kicker correctly, we have to find the success rate of each one, which is obtained by dividing and then multiplying by 100 to obtained the percentage:

R=\frac{made}{attempted}

<h3>Success rate of A:</h3>

R_{A}=\frac{12}{14}.100=86\%

<h3>Success rate of B:</h3>

R_{B}=\frac{15}{18}.100=83\%

<h3>Success rate of C:</h3>

R_{C}=\frac{19}{24}.100=79\%

So, comparing all three, from least to greatest we have:

C with 79%, then B with 83%, and A with 86%.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A flower bed has the shape of a rectangle 9 years a long and 3 yards wide. What is the area in square feet?
    5·1 answer
  • Daniel is a singer, and he promises his agent that he will give him a 25% commission based on what he makes from a show. After p
    9·2 answers
  • Use the figure above to identify a pair of similar triangles, then find the scale factor. The image is not drawn to scale.
    15·2 answers
  • Find the exact length of the third side
    9·2 answers
  • A submarine is at 400 feet below sea level. If it ascends 150 feet and then descends 320 feet, how far is it above or below sea
    8·1 answer
  • Solve: 2x+1-14x=-71<br> This is for 7th grade mathematics. Please help! I need this now!
    10·1 answer
  • Consider the system of equations.
    10·1 answer
  • What is the equation of the line that passes through (–5, 0) and (4, 3)?
    8·1 answer
  • Given triangle XYZ:<br> Angle X = 90°<br> Angle Y = 45°<br> Angle Z=
    6·2 answers
  • Help with this please!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!