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
Oksi-84 [34.3K]
3 years ago
5

Does anyone get this!??

Mathematics
1 answer:
stepladder [879]3 years ago
8 0

Hello from MrBillDoesMath!

Answer:

8

Discussion:

Let the number be "n". Then the question states that

3n - 15 = (n/2) + 5             => multiply both sides by 2

6n - 30 = n + 10                => subtract n from both sides

5n - 30 = 10                      => add 30 to both sides

5n = 30 + 10 = 40            => divide both sides by 5

n = 40/5 = 8

Thank you,

MrB

You might be interested in
The points (0,0), (3,8) and (9,24) are on the graph of a proportional relationship. Determine a fourth point that belongs on the
Alex73 [517]

Answer:

(6, 16)

Step-by-step explanation:

This is a linear graph with equation y=8/3x

Just plug in any value of x to get another value of y

Look at the two graphs below

The equation y=8/3 contains the given points (0,0), (3,8), and (9,24) All you need to do is select another point on that line

7 0
3 years ago
A ladder 25 feet long is leaning againstthe wall of a house. The base of the ladder ispulled away from the wall at a rate of 2 f
WITCHER [35]

Answer: a) -7/12 ft/s, -20 ft/s, -7 ft/s

              b) 527/24 Ft²/s

              c) 2/25 rad/sec

Step-by-step explanation:

a) b=7 ; a^2+b^2 = 25^2

             a^2+b^2 = 625

Differentiate w.r.t = 2a (da/dt) + 2b ( db/dt) = 0

                                    b(db/dt) = -a(da/dt)

As found from above put a=24 b=7,15 and 24. You will get the reuqired answer.

b) Area of the triangle = 1/2 * b*h

differentiate wrt to time leads to the following relation:

2dA/dt= h(db/dt)+b(dh/dt) \\dA/dt=24-49/24 = 527/24 Ft^2/sec

c) sin (Θ) = b/25

differentiate it again to give

cos(0.284)(d\theta/dt) =  (1/25) (db/dt) \\=2/25 rad/sec

                                 

                               

6 0
3 years ago
An insect is 3 inches long. What is the length to the nearest hundredth of a centimeter
densk [106]
1 inch = 2.54 cm
3 inches = 3 * 2.54 = 7.62 cm
6 0
3 years ago
Solve for R:<br> 28=4r+28
tatiyna

Answer:

r= 14

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve each linear-quadratic system algebraically
shusha [124]
For the first one, Y-5=(x-2)^2. First you multiply x-2•X-2, which is x^2-4x+4. Lastly, you subtract -5 from both sides so the equation would look like Y=x^2-4x+9.
7 0
3 years ago
Other questions:
  • 5. Given the following triangle side lengths, identify the triangle as acute, right or obtuse. Show your work.
    9·2 answers
  • (2. Given<br> g(x) = -2 5x², find<br> g(8ax)
    7·1 answer
  • Give an example of an irrational number that is less than -5.
    13·1 answer
  • Find the coordinates of the midpoint of the segment joining the given points (0,2) and (6,4)
    7·1 answer
  • At Garcia's Bike Rentals, it costs $22 to rent a bike for 5 hours. How many hours of bike use does a customer get per dollar?
    10·1 answer
  • Costs are rising for all kinds of medical care. The mean monthly rent at assisted-living facilities was reported to have increas
    7·1 answer
  • Find two positive numbers so that twice their sum equals their product and one number is 10 times the other number. Enter the sm
    11·1 answer
  • Pls help!! will mark brainliest!!
    12·2 answers
  • £6846 is shared equally between 7 people. How much does each person get?
    8·2 answers
  • Two mechanics worked on a car. The first mechanic charged $75 per hour, and the second mechanic charged $50 per hour. The mechan
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!