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
Svetlanka [38]
3 years ago
6

Leah has 28 more marbles than Dan. 1/3 of Leah’s marbles are equal in number to 4/5 of Dan’s marbles. Find the number of marbles

Leah has.
Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer:

48

Step-by-step explanation:

L = D + 28

⅓L = ⅘D

Solve the system of equations using elimination or substitution.  Using substitution:

⅓L = ⅘(L − 28)

Multiply both sides by 15:

5L = 12(L − 28)

Distribute:

5L = 12L − 336

Combine like terms:

336 = 7L

Divide:

L = 48

You might be interested in
Points A and B are 200 mi apart.
Nikolay [14]
Okay and what about it?
4 0
3 years ago
Read 2 more answers
What is 10×2/5 in unit form?
saveliy_v [14]
10*2/5= 20/5 = 4   = 4.0 where 4 is the unit.(whole number)
8 0
3 years ago
Read 2 more answers
The Sine Function
ryzh [129]

Answer:

C. 34.081 sin (0.888 x + 1.341) + 82.822

Step-by-step explanation:

I calculated it logically

7 0
3 years ago
The perimeter of a rectangular building is 1200 feet. The width of the building is 2 feet less than three times the length. What
juin [17]

Given:

The perimeter of a rectangular building is 1200 feet.

The width of the building is 2 feet less than three times the length.

To find:

Width of the building.

Solution:

Let length of the building be x.

Then, width = 3x-2

We know that,

Perimeter=2(length +width)

1200=2(x+3x-2)

1200=2(4x-2)

1200=8x-4

Add 4 on both sides

1204=8x

Divide both sides by 8.

\dfrac{1204}{8}=x

150.5=x

Now,

Width=3x-2

Width=3(150.5)-2

Width=451.5-2

Width=449.5

Therefore, the  width of the building is 449.5 feet.

6 0
3 years ago
Which number goes in the box to make this a true number sentence? 7 × (3 + 9) = 21 +
Bumek [7]
7(3 + 9) = 7(3) + 7(9) = 21 + 63
4 0
3 years ago
Read 2 more answers
Other questions:
  • Whats a story that can be solved using the equation 18.50 ÷ 0.5=x?
    5·1 answer
  • Carroll borrowed $500 at 14% interest for 6 months. How much interest did she pay?
    11·1 answer
  • Which value is an output of the function? –6 –2 4 7
    10·2 answers
  • Classify the following triangle .check all that apply
    13·1 answer
  • X A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?
    6·1 answer
  • On a test, Sarah got 48 questions correct out of 50. What percent did she get on her test?
    11·2 answers
  • Please help!! Need the answer
    5·1 answer
  • Help me plzzzz neeed help asap
    10·2 answers
  • What is the equation of a line that passes through (0.8) and (3,6)?
    7·1 answer
  • Rita drank the following ounces of milk during the last week
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!