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
hram777 [196]
3 years ago
6

Linear equations substitution

Mathematics
1 answer:
Nataly_w [17]3 years ago
6 0
For example, y=x+4 and y=5x+2.
That would mean that x+4=y=5x+2.
Simplify it to x+4=5x+2.
x=5x-2
-4x=-2
x=1/2.
Now, plug x into one of the equations.
y=x+4
y=1/2+4
y=9/2.
Therefore, the POI is (1/2,9/2).
You might be interested in
A useful rule of thumb called the "rule of 70" states that if something grows at a constant rate of z percent per year, it doubl
vesna_86 [32]
<span>The answer is b. (70/z). If I put $100 into a savings account and the annual growth rate is 10%, the 70/10%= 7 years that the initial $100 would take to double.</span>
4 0
4 years ago
In a model of a ship,the mast is 9cm high,while the mast of the actual ship is 12m high.if the length of the ship is 28m,how lon
grandymaker [24]

Answer:

21cm

Step by step:

Scale : 9cm :12m

Therefore 1m = 9/12 cm

28m= 9/12 *28 = <u>21 cm</u>

7 0
3 years ago
The circumference of the circle-shaped rug is 69.08 inches.
adelina 88 [10]
We can find the diameter by dividing the circumference by 3.14
d = 22

Thus, our radius is 11.
r = 11

Now, let's use the area formula (3.14 \cdot r^2) to solve for the area.
a = 3.14 \cdot (11^2) = \boxed{379.94}
8 0
3 years ago
Please please PLEASE help. this is due today!
lianna [129]

Answer:

17 cm

Step-by-step explanation:

To find the perimeter of any figure, you must add all the side lengths. In a triangle, there are three side lengths to add, and in this case, they are 3 cm, 6 cm, and 8 cm long. So:

3 + 6 + 8 = 17 cm

∴, the triangle's perimeter is 17 cm.

3 0
3 years ago
Read 2 more answers
What is 3(5x^2-9x) evaluated for x=-3
Studentka2010 [4]

Answer:

216

Step-by-step explanation:

put -3 where x is

3 ( 5 -3^2 - 9(-3) )

3 ( 45 + 27 )

3 (72)

216

4 0
2 years ago
Read 2 more answers
Other questions:
  • NEED HELP PLEASE don't know how to solve
    12·1 answer
  • Lydia is making spaghetti sauce at a community luncheon. Each batch requires 1⁄2 teaspoon of salt, 1⁄3 teaspoon of oregano, 1⁄4
    10·1 answer
  • Jim works at a furniture shop. He can assemble 88 chairs in 22 hours. If he can assemble c chairs in 1 hour, identify the equati
    10·2 answers
  • mike opened a savings account and deposited $300.00. The account earns 11% interest, compounded annually. If he wants to use the
    5·1 answer
  • What's the missing measurement ? pls help :]
    11·2 answers
  • What is 1000000+25437
    9·2 answers
  • PLZZ HELP ME WORTH 35 POINTS
    8·2 answers
  • Whoever answers i’ll mark brainliest
    6·2 answers
  • Please answer number 8. I need help, I don’t understand.
    9·1 answer
  • The product of two integers is eighty,their quotient is five.Write both integers in numerical order and separated by a comma,no
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!