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
ss7ja [257]
2 years ago
8

A sunscreen preparation contains 2.40 % by mass benzyl salicylate. If a tube contains 3.0 oz of sunscreen, how many kilograms of

benzyl salicylate are needed to manufacture 425 tubes of sunscreen?
Mathematics
1 answer:
belka [17]2 years ago
8 0
You need to know that:

1 ounce = 28.35 grams

So, 1 tube contains

3.0 oz × 28.35 = 85.05g total mass

Mass of Benzyl salicylate =

2.40/100 = Percentage of Benzyl salicylate (in numerical value)

= 0.024

0.024 × 84 = Mass of Benzyl Salicylate

=2.016g

If one tube contains

2.016g × 425 tubes

=856.8g

Then,

Converting into kg by (dividing by 1000)

=856.8 ÷ 1000

= 0.8568 grams

= 0.857g (3sf)
You might be interested in
The equation of the line of best fit of a scatter plot is y = −5x − 2. What is the slope of the equation?
tatiyna

Answer:

-5

Step-by-step explanation:

Because y=Mx=b and m is the slope

4 0
2 years ago
Read 2 more answers
The length of the base of a right triangle is twice the height. If the height is ten meters, find the area of the right triangle
Ber [7]

Answer:

the answer is C... 100 m2

Step-by-step explanatii just took the test and it was right. the base would be 20 and the height would be 10. from there you just you the formula for area of a right triangle.

4 0
2 years ago
What to do if quadratic equation has a negative spuare root?
alex41 [277]

If the negative square root is found to be one of your solutions, then that is indicative of a pair of imaginary roots (the imaginary i). According to the conjugate rule, if you have one solution that is imaginary, you will have another but with the opposite sign. For example, if a solution to a quadratic is found to be 2 - i, then its conjugate, 2 + i is also a solution. They will ALWAYS go in pairs. Same thing with radical solutions. If one solution is found to be 3+\sqrt{5}

then 3-\sqrt{5} will also be a solution.

3 0
3 years ago
A new roll of wrapping paper has 6 5/8 yards of paper. Drew used 2 1/6 yards from the roll to wrap a gift. Which equation most c
Sedbober [7]
First you have to make both fractions have the same denominator, so you can multiply each fraction by the others denominator.

5/8
To
(5*6)/(8*6)

And

1/6
To
(1*8)/(6*8)

Now it's 6 30/48 - 2 8/48

= 4 22/48

Now reduce to

= 4 11/24

So, 4 11/24 is the answer

3 0
3 years ago
-4x -7 - 3x + 4 = 25
zimovet [89]

Answer:

x=-4

Step-by-step explanation:

-4x -7 - 3x + 4 = 25

-7x=25-4+7

x=-28/7

x=-4

7 0
2 years ago
Read 2 more answers
Other questions:
  • Help please need it fast
    15·2 answers
  • Curtis wants to save money for a trip overseas. Curtis invests $900 in an account that pays an interest rate of 8.75%. How many
    8·2 answers
  • A manufacturer has fixed costs of $16,000 per month and can produce w widgets at a cost of 0.1w^(2) + 20w. How many widgets shou
    6·1 answer
  • If 7% of Americans is about 22 million, which number below could represent 7% of Americans
    12·1 answer
  • Solve 2x^2 – 8x = –7
    5·2 answers
  • you sell bracelets for 2$ each and necklaces for 3$ each at a local flea market. you collected 95$, selling a total of 37 jewelr
    12·1 answer
  • F(x) = 2^x<br><br><br> what is the domain ?<br> range ? asymptote ? and transformation
    15·1 answer
  • In the picture the exponent says 5/3
    15·1 answer
  • What is the correct radical form of this expression
    14·1 answer
  • Please solve it
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!