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
lbvjy [14]
2 years ago
10

I need help on this, will someone try and help me out? PLEASE

Mathematics
2 answers:
sattari [20]2 years ago
7 0
Step 1.) Multiply both sides of the equation by -6

step 2.) Sum the equations vertically to eliminate at least one variable

step 3.) Divide both sides of the equation by

step 4.) Substitute the given value of into the equation x - 2y = 10

step 5.) Solve the equation for x

step 6.) The possible solution of the system is the ordered pair (x , y)

step 7.) Check if the given ordered pair is the solution of the system of equations

step 8.) Simplify the equalities

step 9.) Since all of the equalities are true, the ordered pair is the solution of the system


So your answer would end up being (40/13 , -45/13) !! Hope that helps you out :D !!
kumpel [21]2 years ago
7 0

Answer:

x=4 y=-3

Step-by-step explanation:

I will solve your system by substitution.

(You can also solve this system by elimination.)

x−2y=10 ; 6x+3y=15

Step: Solve x −2y= 10for x:

<em>x − 2y + 2y = 10 + 2y</em><em> </em>(Add 2y to both sides)

<em>x=2y+10</em>

Step: Substitute 2y+10 forx in 6x+3y=15:

<em>6x+3y=15</em>

<em>6x+3y=156(2y+10)+3y=15</em>

<em>15y</em><em>+</em><em>60</em><em>=</em><em>15</em><em> </em>(Simplify both sides of the equation)

<em>15y+60+−60=15+−60</em><em> </em>(Add -60 to both sides)

15y=−45

<em>15y</em><em>/</em><em>15=−45</em><em>/</em><em>15</em>(Divide both sides by 15)

y=−3

Step: Substitute −3 for y inx=2y+10:

x=2y+10

x=(2)(−3)+10

x=4(Simplify both sides of the equation)

Answer:

x=4 and y=−3

You might be interested in
NEED HELP ASAP PLZZZZ
Law Incorporation [45]

Answer

b

highest he should make is 3599.55 and lowest is 3332.55 so a doesnt fit and b does

3 0
3 years ago
Read 2 more answers
Katie,Elizabeth,and Siobhan volunteer at the hospital. In a week,Katie volunteers 3 hours more than Elizabeth does and Siobhan v
Tema [17]
Let's say that x represents hours that Elizabeth volunteers over 1 week. Katie volunteers x+3 and Siobhan x-1 hours per week. The equation that arises from condition in text is:
3*(x+3) = 3*(x + x-1)
x+3 = 2*x - 1
2*x - x= 3+1
x=4.

Elizabeth volunteers    7 hours
Katie volunteers          4 hours
Siobhan volunteers     3 hours 
7 0
3 years ago
Read 2 more answers
Javier and his friends go out to eat. The restaurant they chose automatically adds a 15% gratuity to their food bill since they
siniylev [52]

well, we know that 213.90 includes the 15% gratuity, so if the meal price was say "x", namely that is the 100%, and we add 15% to that, then 100% + 15% = 115%, so 213.90 is really the 115%.

now, if 213.90 is the 115.%, what is "x"?  the 100%.


\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 213.90&115\\ x&100 \end{array}\implies \cfrac{213.9}{x}=\cfrac{115}{100}\implies 21390=115x \\\\\\ \cfrac{21390}{115}=x\implies 186=x


so since we know the meal without the tip is 186 bucks, the tip was then 213.90 - 186 = 27.90.

but they got extra potato wedges with butter and the waitress was wearing her best hat, they added $20 more, so the tip ended  up as 27.90 + 20 = 47.90.

now, if the cost of the meal was $186 and that is the 100%, what is 47.90 off of it in percentage?


\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 186&100\\ 47.90&x \end{array}\implies \cfrac{186}{47.90}=\cfrac{100}{x}\implies 186x=4790 \\\\\\ x=\cfrac{4790}{186}\implies x\approx \stackrel{\%}{25.75}

7 0
3 years ago
Read 2 more answers
Please someone help me. Im giving brainliest!
Ivahew [28]

10x-45-4x-2

6x- 47= 1

6x=1+47

6x=48

x=8

PLEASE MARK BRAINLIEST

7 0
3 years ago
Read 2 more answers
Answer asap plz
babunello [35]
The circle graph is usually used to show proportions of a whole.

The Venn Diagram is used to represent the relationship between two or more collection of objects.

The double bar graph is used to compare two variables over a period of time.

The line graph is used to compare the trends of a variable over a period of time.

Therefore, the <span>graphical representation that would best display the number of points a home team and a visitor’s team scored in each game this season is the double bar graph.</span>
3 0
3 years ago
Other questions:
  • Name some advantages and disadvantages of the graphing method and the algebraic method when determining solutions for linear fun
    8·1 answer
  • Simplify: 1/3x(6x - 1) A) 5 3 x B)2x - 1 C)2x - 1 3 D)2x2 - 1 3 x
    9·2 answers
  • DUE ASAP TODAY will give brainliest
    15·2 answers
  • The cost in dollars y of producing x computer
    13·1 answer
  • bill earns $40 more than half Ritas weekly pay. If their combined pay for a week is 520. what equation can we use to solve for r
    14·1 answer
  • Factor 18bc + 9ab + 3cb completely.
    9·1 answer
  • Suppose a telephone poll is conducted by contacting U.S. citizens via landlines about their view of gay marriage. Suppose over 5
    10·1 answer
  • Answer the following NEED ANS ASAP GIVING U 15points
    12·2 answers
  • I WILL GIVE BRAINLIEST
    6·2 answers
  • Solve the compound inequality.<br> x+3&lt;0 or 5x&gt;−10
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!