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
Alika [10]
3 years ago
12

Y = –2x + 30 y = 4x Plz help

Mathematics
1 answer:
kati45 [8]3 years ago
5 0

Answer: x=5

Step-by-step explanation:

Step 1:-

Given equations are y=-2 x+30........(1)

   another equation is y=4 x ..........(2)

Step 2:-

solving these two equations (1) and (2)

Equating both equations are  4 x = -2 x+30

4 x+2 x =30

6 x =30

Step 3:-

The final answer is x=5

                                                 

You might be interested in
Write the expression in standard form. (6 − 4)− ( − 3) help me i need help
dangina [55]

Answer:

5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A positive consequence that happens as a result of a choice an ​
bazaltina [42]
A positive consequence that happens as a result of a choice is a BENEFIT.
8 0
3 years ago
Read 2 more answers
At an effective annual interest rate i, i > 0, each of the following two sets of payments has present value K:
omeli [17]

Answer:

Hence the calculated

Step-by-step explanation:

Now,

121+121v=144v^{2} + 144 v^{3} =K\\121(1+v)=144v^{2} (1+v)\\v^{2} =\frac{121}{144} \\\\v=\frac{11}{12}

Then K is calculated as,

K=121(1+v)\\K=121(1+\frac{11}{12} )\\K=\frac{121(23)}{12} \\\\K= 231.916

Here we get,

i=\left | \left ( \frac{v-1}{v} \right ) \right |\\i=\left | \frac{\frac{11}{12}-1}{\frac{11}{12}} \right |\\i=\frac{1}{11}

5 0
4 years ago
A parabola has its vertex at (2, 2), and the equation of its directrix is y = 2.5. The equation that represents the parabola is
Xelga [282]

Answer:

In vertex form the equation is y=-\frac{1}{2}(x-2)^2+2

In standard form the equation is y=-\frac{1}{2}x^2+2x

Step-by-step explanation:

The equation of the directrix tells us that this is an x-squared parabola.  Because the directrix is above the vertex, the parabola will open downward.  The vertex form of this equation is:

4p(y-k)=-(x-h)^2

where p is the number of units between the directrix and the vertex.  The number of units here is .5 or 1/2.  Filling in the coordinates of the vertex and the p value of 1/2:

4(.5)(y-2)=-(x-2)^2

Simplifying we have:

2(y-2)=-(x-2)^2

Divide both sides by 2 to get:

y-2=-\frac{1}{2}(x-2)^2

Add 2 to both sides to get the final vertex form:

y=-\frac{1}{2}(x-2)^2+2

If you want that in standard form, you first need to expand the squared term to get:

y=-\frac{1}{2}(x^2-4x+4)+2

Order of operations tells us that we have to distribute in the -1/2 first to get:

y=-\frac{1}{2}x^2+2x+2-2

which simplifies to the standard form:

y=-\frac{1}{2}x^2+2x

5 0
3 years ago
Please answer ASAP and explain your answer ​
shusha [124]

it's a

because minus means this (-)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Factor the expression. 9x2 + 24x + 16
    13·1 answer
  • 24.00 And sold it for 34.00 What is the percent of increase rounded to the nearest tenth
    5·1 answer
  • A student scored a 98 86 93 and 75 in math fot the quarter what is the students math average for the quater
    12·2 answers
  • What is the probability of picking an ace of spades in a deck of cards (That has 52 cards in it) write your answer as a fraction
    11·2 answers
  • ** ANSWER ASAP **<br><br><br>am i correct?
    12·1 answer
  • In T-ball, the distance to each successive base is 50 feet. If the distance from home plate to the pitcher’s mound is 38 feet, h
    8·1 answer
  • In how many ways can 2 coins be chosen from a set of 1 penny 1 nickel 1 dime 1 quarter
    5·2 answers
  • Which equation represents a line which is perpendicular to the line y= -5/4x - 4?
    11·1 answer
  • A pole with a height of 50 feet casts a shadow 50 feet long. Find the angle of elevation of the sun at this point in time.
    10·1 answer
  • If someone answers this question, the next one i'll ask with be 100 points
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!