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
Greeley [361]
3 years ago
6

Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x – 10? Sel

ect two options.
y = x2 + 5x + 10
y + 5x = x2 + 10 + 4x – 10
0 = x2 – 9x
0 = x2 – 9x + 20
One x-value of a solution to the system is 4.
Mathematics
2 answers:
dolphi86 [110]3 years ago
8 0

Answer:

That would be :

 4x – 10 = x2 – 5x + 10  ( y = 4x - 10 is substitute for y)

 PROOF:        y + 5x = x² + 10

                     (4x - 10) + 5x = x² + 10

                      4x - 10  =  x² -5x + 10

    0 = x2 – 9x + 20  (liked terms are grouped and simplified)

PROOF:      4x - 10  =  x² -5x + 10

                   4x = x² -5x + 10 + 10

                    0  = x² -5x -4x + 20

                    0  = x² - 9x + 20

Solving:

             x² - 9x + 20 = 0 

             x² - 5x - 4x + 20 = 0

             (x - 5) (x - 4)  = 0

          ⇒ x = 4  (as question says) OR x = 5

Step-by-step explanation:

hope this helps

marissa [1.9K]3 years ago
6 0

Answer:

Its D and E on edg

Step-by-step explanation:

follow my ifunny"dankmemehistory"

You might be interested in
A water color is 20 inches long by 9 inches wide. Ramon makes a boreder around the watercolor painting by making a mat that adds
neonofarm [45]
The area of the mat = total area added minus the original area of the water color painting.
length of the mat is:L = 20 in + 1 in + 1 in because 1 in  is added to each sideL = 22 inwidth of the mat is:w = 9 in + 1 in + 1inw = 11 in
Area mat = (22 in x 11 in) - ( 20 in x 9 in)
area mat = 62 sq in is the area of the mat
3 0
3 years ago
Line segment AB is dilated to create line segment A’B’ using point Q as the center of dilation what is the scale factor
Alex777 [14]

Answer:

2

Step-by-step explanation:

We are given the distance QA=1.25 and QA'=2.5.

We make the relation 2.5/1.25=2 is the scale factor!

5 0
4 years ago
Online jewelry sales have increased steadily over the last several years. In 2003, sales were approximately 2 billion dollars, a
larisa [96]

ah mn m sei fui muito cringe

3 0
3 years ago
Read 2 more answers
If k is parallel to l find the value of a and the value of b.
kipiarov [429]

Answer:

a = 30

b = 40

C

Step-by-step explanation:

This requires that you use a proportion.

a / (a + 15) = 40 / 60

The small triangle's sides are in proportion to the large triangles sides.

Reduce the right. Divide top and bottom by 20

a/(a + 15) = 40/20 // 60/20

a/(a + 15) = 2/3                    

Cross multiply

3a = 2(a + 15)            Remove the brackets on the right.

3a = 2a + 30

Subtract 2a from both sides

3a-2a = 30

a = 30

Find B

b is done exactly the same way.

b/(b+20) = 2/3

3b = 2b + 40

3b - 2b = 40

b = 40

3 0
4 years ago
Solve linear equation 1/4 x + 18 = X
Anton [14]

Answer:

24

Step-by-step explanation:

1 / 4 x + 18 = x

x / 4 + 18 = x

x = x / 4 + 18

x - x / 4 = 18

( 4x / 4 ) - ( x/4 ) = 18

( 4x - x ) / 4 = 18

3x / 4 = 18

3x = 18 * 4

x = ( 18 * 4 ) / 3

  = 6 * 4

x = 24

3 0
3 years ago
Other questions:
  • What is the difference in length between 1 1/4 inch button and a 3/8 inch button
    14·1 answer
  • Consider the number pattern :6;10;16 ;24;34....<br> Determine the general term of the pattern
    5·1 answer
  • AJ worked 48 hours last week. He earns $12.40 per hour plus overtime, at the usual rate, for hours exceeding 40 hours.
    5·2 answers
  • If 3x-4+8=12+2x<br> then x=?
    12·1 answer
  • a swimming pool is three times as long as it is wide. the sidewalk around the pool is 72 yds long. determine the length and widt
    7·2 answers
  • X = -3 + 5y - 6 for y
    12·1 answer
  • An exercise class had 18 people. If each person produced 1,900 BTUs of body heat during the class and the room is 28 ft × 32 ft
    8·2 answers
  • Hey i'm finding trouble studying and remembering the work that i have just studied does anyone have any tips to help me? i want
    11·1 answer
  • Which operation would you do first in the following expression 10 - 4 ÷ 1 x 5
    9·2 answers
  • Lorreen sells 18 adult tickets, 23 student tickets, and 10 discount tickets for the school play. Write the ratio student tickets
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!