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
Yuliya22 [10]
3 years ago
6

How to solve this? 0.5x+y=1.5 and 0.8x-0.2y=6

Mathematics
1 answer:
zavuch27 [327]3 years ago
8 0

Step-by-step explanation:

Step 1 : 0.5x + y = 1.5

            0.8x - 0.2y =6

Step 2 : y = 1.5 - 0.5x

             0.8x - 0.2 ( 1.5 - 0.5x ) = 6

Step 3 : y = 1.5 - 0.5x

            0.8x - 0.3 + 0.1x = 6

Step 4 : y = 1.5 - 0.5x

            0.9x = 6.3

Step 5 : y = 1.5 - 0.5* 7

             x = 7 ( put 7 into the x value above )

Ans: y = -2

        x = 7

You can ask me if you don't understand any step^^

You might be interested in
HELPPPPP MEEEEEE Which one is not a solution to y = 3x - 5? A. (0, –5) B. (– 1, – 2) C. (5/3, 0) D. (2, 1)
nignag [31]

Answer:

Step-by-step explanation:

Let's examine the individual things

A. x=0 --> y=3.0-5=-5 True

B. x=-1 --> y=3.(-1)-5=-8 False

C. x=5/3 -->y=3(5/3)-5=0 True

D. x=2 --> y=3.2-5=1 True

Answer is B.

You don't understand, you can ask me :)

7 0
2 years ago
What is 20 percent of 90?​
ivolga24 [154]

Answer:

18

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Determine the values of "m" and "n" so the number would be in scientific notation:
Andreyy89

Answer:

79,000= 79•10^3

Step-by-step explanation:

so the amount of 0's = the power of 10.

In this situation there is 3 0's . so the power of ten will be 10^3

and then the number before the 0's will equal m

so m = 79 n = 3

And also (just as a side note) you can use the asterisk mark (*) as the multiplication symbol. on most keyboards the command is ctrl + 8. you can also use a bullet point (•) for multiplication symbol the command for that is alt + 0149

3 0
2 years ago
The office store sells printer paper. Last week, The store sold 324 packs of white paper, which was 40% of the paper it was sold
kotegsom [21]

Answer:

72%

Step-by-step explanation:

6 0
2 years ago
Is knowing two sides and another angle enough to say they are congruent?
olga55 [171]
If there is more information then you should use it but if that is then yes it is possible if you think hard enough.
7 0
2 years ago
Other questions:
  • The value of 7 in 26,475 is what times the value of 7 in 503,497
    13·2 answers
  • 6b^2-13+6=0 Quadratic equations by factoring
    12·1 answer
  • Freddy spent $56.07 on four pairs of jeans at the store. His cost included $4.15 sales tax.
    10·2 answers
  • Which interpretation for the given expression is correct? 5(3x-4)2 which one is right
    8·1 answer
  • Please help with this one!!
    14·1 answer
  • Show that the product of two consecutive odd integers is always one less than the square of their average. Is this true also for
    11·1 answer
  • Calculate the radius of a circle that has a diameter of 190
    10·2 answers
  • Hozumi recorded the daily high temperatures for an 18-day period in the table shown please I need this really badly
    13·1 answer
  • NO LINKS!! Please help​
    12·2 answers
  • If baby potatoes costs 1.62 and if green beans costs 2.54 and vera bought 2.625 pounds of potatoes and 1.5 pounds of green beans
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!