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
Free_Kalibri [48]
3 years ago
10

Substitution would be the simplest method of solution for which system? 5/3 x = 6y and 2x -3y = 8 3x - 2y =18 and 4x + 5y =60 y

= 2x and x + y = 28
Mathematics
1 answer:
LekaFEV [45]3 years ago
3 0
It would be easiest for the last one
You might be interested in
REALLY NEED HELP WITH THIS!!!​
koban [17]

Answer:

9

Step-by-step explanation:

Solve the equation

Area =1/2(heightxbase)

27=1/2(Xx6)

54=6x

9 =x

4 0
3 years ago
10 POINTS!!! FULL ANSWER WITH FULL STEP BY STEP SOLUTION PLEASE
Inga [223]
A) Profit is the difference between revenue an cost. The profit per widget is
  m(x) = p(x) - c(x)
  m(x) = 60x -3x^2 -(1800 - 183x)
  m(x) = -3x^2 +243x -1800
Then the profit function for the company will be the excess of this per-widget profit multiplied by the number of widgets over the fixed costs.
  P(x) = x×m(x) -50,000
  P(x) = -3x^3 +243x^2 -1800x -50000

b) The marginal profit function is the derivative of the profit function.
  P'(x) = -9x^2 +486x -1800

c) P'(40) = -9(40 -4)(40 -50) = 3240
  Yes, more widgets should be built. The positive marginal profit indicates that building another widget will increase profit.

d) P'(50) = -9(50 -4)(50 -50) = 0
  No, more widgets should not be built. The zero marginal profit indicates there is no profit to be made by building more widgets.

_____
On the face of it, this problem seems fairly straightforward, and the above "step-by-step" seems to give fairly reasonable answers. However, if you look at the function p(x), you find the "best price per widget" is negatve for more than 20 widgets. Similarly, the "cost per widget" is negative for more than 9.8 widgets. Thus, the only reason there is any profit at all for any number of widgets is that the negative costs are more negative than the negative revenue. This does not begin to model any real application of these ideas. It is yet another instance of failed math curriculum material.

3 0
3 years ago
Tammie loves to ride in elevators.  she went up for floors and down three floors. What floor is she on?
Vlada [557]
Floor 1




4 - 3 = 1 so it’s floor #1
7 0
3 years ago
Read 2 more answers
A hockey puck strikes a wall at an angle of 30 degrees. the puck then travels away from the wall at the same angle.
patriot [66]

Two or more angles whose sum is 180° are called supplementary angles. The measure of the ∠y is 120°.

<h3>What are supplementary angles?</h3>

Two or more angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two-two angles are two pairs of supplementary angles. That means, that if supplementary angles are aligned adjacent to each other, their exterior sides will make a straight line.

Given the puck strikes the wall at an angle of 30°, it goes away at the same angle of 30°. Therefore, the measure of angle y can be found using the sum of the angle as a supplementary angle. Thus, we can write,

30° + ∠y + 30° = 180°

60° + ∠y = 180°

∠y = 180° - 60° = 120°

Hence, the measure of the ∠y is 120°.

Learn more about Supplementary Angles:

brainly.com/question/2882938

#SPJ1

5 0
3 years ago
Answer plzzzz<br> What are the set of all natural numbers greater than or equal to 5?
nlexa [21]
5,6,7,8,9,10 probably
8 0
3 years ago
Other questions:
  • Drag a statement or reason to each box to complete this proof.<br><br> If −5(x+8)=−25, then x=−3.
    5·1 answer
  • the main and original incentive for european countries to explore was ___. curiosity religion trade warfare
    7·2 answers
  • Hey can anyone help me with a few quadratic equations?
    11·1 answer
  • What is 3 squared (a) if a = 107
    10·1 answer
  • Heather has a bag with 3 marbles, 6 tennis balls, 2 apples, and 4 books. What is the ratio of books to tennis balls?
    7·1 answer
  • Help ASAP !’please explain
    14·1 answer
  • The girls in Lana’s troop set a goal to sell 1,000 boxes of cookies this year. There are 13 girls in the troop. At least how man
    15·2 answers
  • If the marginal revenue is higher than marginal cost the monopoly can increase profit by
    5·1 answer
  • The table shows ordered pairs of the function . What is the value of y when ?
    13·1 answer
  • find the amount accumulated in an account after $9000 is invested for 8 years at a 4% coumpounded monthly
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!