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
pentagon [3]
3 years ago
6

Can somebody explain to me how to do this and the answers and how you got it

Mathematics
1 answer:
yaroslaw [1]3 years ago
6 0
7. Easiest method is substitution.  Since y=x/2, then:
2x+3(x/2)=28
8.Substituting again, we get:
3x-6x=6
-3x=6
x=-2
(-2,6)
☺☺☺☺
You might be interested in
Use Cramer's Rule to solve each system.<br> 5x – 3y = 8<br> -2x - y = 10
zlopas [31]

Answer:

-2, -6

Step-by-step explanation:

using cramer rule

5    -3    

-2   -1    

calculatiing the determinant = (5 x-1) - (-3x-2) = -5 -(6) = -5-6=-11

using cramer rule

to calculate x we change the coefficient of x with the answer (8,10)

8   -3

10   -1

we calculate determinant = (8x-1)-(-3x10) = -8-(-30) = -8+30 =22

to calculate x

22/-11= -2

to calculate y we change the coefficient of y with the answer (8,10)

5   8

-2   10

we calculate determinant = (5x10)-(8x-2) = 50 -(-16) = 50 +16=66

to calculate y

66/-11= -6

6 0
3 years ago
Read 2 more answers
Multiplying or dividing two related quantities by the same number is called; what?
tamaranim1 [39]
I believe this is called scaling. This is the word that I am associating with your definition, as well as what many internet sources say. I am not 100% sure, but I think this is correct. Hope this helps.
6 0
3 years ago
What are the vertical asymptote(s) of y= (x-6)/(x+8) (x-7)
White raven [17]

Answer:

x = -8 and x= 7

Step-by-step explanation:

recall that for a rational expression, the vertical asymptotes occur at x-values that causes the expression to become undefined. These occur when the denominator becomes zero.

Hence the asymptototes will occur in x-locations where the denominator , i.e

(x+8)(x-7) = 0

solving this, we get

(x+8) = 0 ----> x = -8

or

(x-7) = 0 ------> x = 7

hence the asymptotes occur x = -8 and x= 7

5 0
3 years ago
Read 2 more answers
Explain how 18 is an even number
Marta_Voda [28]
18 is an even number because if you divide 18 ÷ 2 = 9 it guves you an odd number
4 0
3 years ago
In a 8000 m workout a swimmer swims 600 m of wind sprints. What percentage of the workout is wind sprints?
forsale [732]
7.5%

how to do it

to dived 600 m by 8000m and get .075 to switch it to % you multiply it by 100 geting 7.5%
3 0
3 years ago
Other questions:
  • |n/8| &gt; or equal to 2
    11·1 answer
  • Red, green, and white jellybeans are combined in a ratio of 5:4:3, respectively. What is the ratio of green jelly beans to the t
    15·1 answer
  • Find two integers whose product is 138 such that one of the integers is seven less than five times the other integer.
    12·1 answer
  • 322 ÷ 14 using partial quotients
    5·1 answer
  • What is 1 divided by 1/5
    5·2 answers
  • Can someone please help me on the multiple choice 1-3 please ? Im stuck please
    7·1 answer
  • What is the GCF of 12 and 8
    11·2 answers
  • Help me pls on these
    9·1 answer
  • A factory made 69 packs of mint-flavored gum and 31 packs of fruit-flavored gum. What percentage of the packs contained mint gum
    8·1 answer
  • Which statement is true?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!