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
Oxana [17]
2 years ago
7

Which properties are used to simplify 4/5y+3(2/5x+7/5y) to 5y+6/5x

Mathematics
1 answer:
SSSSS [86.1K]2 years ago
8 0
4/5y + 3(2/5x + 7/5y)...distribute thru the parenthesis
4/5y + 6/5x + 21/5y ...combine like terms
25/5y + 6/5x.....reduce
5y + 6/5x
You might be interested in
Could you help me to solve the problem below the cost for producing x items is 50x+300 and the revenue for selling x items is 90
s344n2d4d5 [400]

Answer:

Profit function: P(x) = -0.5x^2 + 40x - 300

profit of $50: x = 10 and x = 70

NOT possible to make a profit of $2,500, because maximum profit is $500

Step-by-step explanation:

(Assuming the correct revenue function is 90x−0.5x^2)

The cost function is given by:

C(x) = 50x + 300

And the revenue function is given by:

R(x) = 90x - 0.5x^2

The profit function is given by the revenue minus the cost, so we have:

P(x) = R(x) - C(x)

P(x) = 90x - 0.5x^2 - 50x - 300

P(x) = -0.5x^2 + 40x - 300

To find the points where the profit is $50, we use P(x) = 50 and then find the values of x:

50 = -0.5x^2 + 40x - 300

-0.5x^2 + 40x - 350 = 0

x^2 - 80x + 700 = 0

Using Bhaskara's formula, we have:

\Delta = b^2 - 4ac = (-80)^2 - 4*700 = 3600

x_1 = (-b + \sqrt{\Delta})/2a = (80 + 60)/2 = 70

x_2 = (-b - \sqrt{\Delta})/2a = (80 - 60)/2 = 10

So the values of x that give a profit of $50 are x = 10 and x = 70

To find if it's possible to make a profit of $2,500, we need to find the maximum profit, that is, the maximum of the function P(x).

The maximum value of P(x) is in the vertex. The x-coordinate of the vertex is given by:

x_v = -b/2a = 80/2 = 40

Using this value of x, we can find the maximum profit:

P(40) = -0.5(40)^2 + 40*40 - 300 = $500

The maximum profit is $500, so it is NOT possible to make a profit of $2,500.

3 0
3 years ago
Help please. (attachment below)
Marina86 [1]
B. seven minutes - because that is when the slope of the line is flat, which means he isn't moving.
3 0
3 years ago
Read 2 more answers
1234567890987654321234567890 divided by 456785678 x 4567567892876543 x 345678920298754673648723693 + 45678 + 1234567890987654321
madreJ [45]

Answer:

8.10800472E59

Step-by-step explanation:

:))

4 0
2 years ago
Read 2 more answers
The expression 2(128 + 5) + V7 can be used to find the perimeter of the triangle. What does
Mama L [17]
You do the things in the parentheses first then multiply them by 2
5 0
2 years ago
Mari used a thermometer to record temperatures of −3.4° Celsius and 1.6° Celsius. Which temperature in degrees Celsius is less t
Studentka2010 [4]

Answer: Qualquer temperatura menor que -3,4°C. Ou seja, -3,5 ; -3,6 ; ...

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Use the clues in the sentences to determine the best meaning for each bolded word
    13·2 answers
  • billy stacked six pieces of wood on top of one another if each piece was three quarts of a foot tall how tall was his pile
    13·2 answers
  • Please helppp.Asapppp
    5·1 answer
  • What is the answer to 3×2/3
    10·2 answers
  • Simplify 4x+3y please
    13·1 answer
  • 3/4 x 5/6 simplified
    8·1 answer
  • Plz i really need help
    13·2 answers
  • {-32 ÷ 4 } x {-16÷ 4}<br><br> Plz answer will steps
    6·2 answers
  • In a story, a tortoise and a hare take part in a race.
    11·1 answer
  • The following diagram represents all of the stages of a shrinking iceberg. The iceberg is circular, and when it started out, it
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!