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
kap26 [50]
3 years ago
5

PLEASE HELP!!!! 20 POINTS!!!

Mathematics
1 answer:
Vlad1618 [11]3 years ago
6 0
Mass = density* volume
since density= mass/volume then mass/volume*volume=mass
= 4.5*0.4 =  1.80g

You might be interested in
Rachel mom 5 lawns in 8 hours at this rates how many can she mom in 40 hours
TEA [102]

Answer:

25

Step-by-step explanation:

  • 8times5 is 40
  • 8h is 5 lawns
  • 5 times 5 is 40
5 0
3 years ago
Terri brought 1.74 meters of rope. Gracie brought 1.64 meters of rope. Who brought more rope
vredina [299]

Answer: Terri brought 10 more centimeters of rope than Gracie.

Step-by-step explanation:

8 0
3 years ago
Let u= <4,3>. Find the unit vector in the direction of u, and write your answer in component form.
aksik [14]
Take the vector u = <ux, uy> = <4, 3>.

Find the magnitude of u:

||u|| = sqrt[ (ux)^2 + (uy)^2]

||u|| = sqrt[ 4^2 + 3^2 ]

||u|| = sqrt[ 16 + 9 ]

||u|| = sqrt[ 25 ]

||u|| = 5

To find the unit vector in the direction of u, and also with the same sign, just divide each coordinate of u by ||u||. So the vector you are looking for is

u/||u||

u * (1/||u||)

= <4, 3> * (1/5)

= <4/5, 3/5>

and there it is.

Writing it in component form:

= (4/5) * i + (3/5) * j

I hope this helps. =)
3 0
3 years ago
The student council is selling cookies.They buy the cookies from the store for .55 cents each.They sell the cookies for $1 each.
aleksley [76]

Answer:

The percentage of the markup is 82%

Step-by-step explanation:

In this question, we are asked to calculate the percentage of mark up. This is simply calculating the percentage of the profit margin.

firstly to be able to calculate this percentage, we need to know the value of the profit margin itself.

mathematically, the profit margin is selling price - cost price

From the question, the selling price is $1 while the cost price is 55 cents

The profit margin is thus $1 - 55 cents = 45 cents

We now proceed to calculate the percentage profit

mathematically, that is profit/cost price * 100%

That would be 45 cents/55 cents * 100 = 9/11 * 100% = 81.8 approximately 82%

7 0
2 years ago
Write the word phrase for 2m - 6
podryga [215]
6 less than 2 and a number.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What are the next five terms
    12·1 answer
  • To make a batch of
    15·1 answer
  • Pilar wanted to use estimation to solve a decimal addition problem. She correctly used estimation to rewrite the problem as 12 +
    11·2 answers
  • What is the ratio of 36/40 plz help me
    5·1 answer
  • What is the length of the line?
    14·2 answers
  • Which linear regression equation best fits the given points? (0,8), (1,6), (1,7), (2,4), (2,5), (4,1), (5,1), (6,0)
    8·1 answer
  • If Joy has 67 cupcakes and Lizzy has 89 cupcakes what is the ratio of the two numbers?
    7·1 answer
  • Please help me, thank you very much
    7·1 answer
  • Factorise completely x^3+6x^2+3x-10
    13·2 answers
  • ASAP
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!