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
GREYUIT [131]
3 years ago
15

A pencil at a stationery store costs $1, and a pen costs $1.50. Stefan spent $7 at the store. He bought a total of 6 items. Whic

h system of equations can be used to find the number of pencils (x) and pens (y) he bought?
A.x + 1.5y = 7 x + y = 6
B.1.5x + y = 7 x = 6y
C.x + 2y = 7 6x = 1.5y
D.2x + y = 7 6x = 1.5y


The system of equations shown below is graphed on a coordinate grid:

3y + x = 4
2y − x = 6

Which statement is true about the coordinates of the point that is the solution to the system of equations? It is (−2, 2) and lies on both lines. 
It is (−5, 3) and lies on both lines. 
It is (−5, 3) and does not lie on either line. 
It is (−2, 2) and does not lie on either line.
Mathematics
1 answer:
LekaFEV [45]3 years ago
4 0
Well, the first one, I have never worked with before so I'm sry but I can't help you with that one. 3y + x = 4 (x=1) 2y - x = 6 (x=8)
You might be interested in
Converting English and Metric<br> 22 gallons = how many liters?
Law Incorporation [45]
22 gallons is 83.279 liters
3 0
3 years ago
PLEASE ANSWER ASAP IT'S IMPORTANT 30 POINTS
Reptile [31]

Answer:

√841

Step-by-step explanation:

You would use pythagorean theorem to solve this problem:

a² + b² = c²

a = 20 b = 21

20² + 21² = 400 + 441 = 841

√841

3 0
2 years ago
Read 2 more answers
Owen is signing up for a gym membership with a one-time fee to join and then a
Katena32 [7]
The cost of the monthly fee is 50$.. if the joining fee is 100.. take 200 and subtract that fee since it is included in the total. You’re left with 100. Note, the 200 is calculated for a 2 month period, so split the remaining 100 ,from the total 200, into 2. You’re left with 50 each month.

T=(C-100)/2 (T being 1 month) (C being the total cost/200)

Hopefully

3 0
3 years ago
I need help please been getting all the answers wrong
vaieri [72.5K]

Answer:Question? :c

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Graph the system of linear inequalities, please explain the process in solving this problem so I know how to do ones similar to
astra-53 [7]

Answer:

See attached. (Both inequalities graph to the same region.)

Step-by-step explanation:

To graph an inequality, you first replace the inequality symbol by an equal sign. Then you graph the line (or curve) described by the equation. If the inequality symbol includes the "or equal to" case, then the line (or curve) is solid and is part of the solution set. If not, then the line (or curve) is dashed and is <em>not part of the solution set</em>.

Here, the line x+y=5, will bound the solution set, but is not part of it.

Note that the line -x -y = -5 (from the second inequality) is the same ilne.

_____

After you have graphed the boundary of the solution region, you need to determine which side of the boundary has the solutions. I find it easy to do this by locating an x- or y-term with a positive coefficient and seeing which side of the inequality symbol that lies on. Here, both the x-term and the y-term lie on the "is greater than" side of the symbol, so the half-plane is shaded above and to the right of the line, where x- and y-values are greater than they are on the line.

In the second inequality, you can multiply the whole thing by -1 to get

... x + y > 5 . . . . same as the first inequality

or you can add (x+y) to both sides to get

... 0 < -5 +x +y

Once again, the x- and y-values that satisfy this are greater than those that are on the boundary line.

_____

The graph seems to show only one equation. Both are there, but the dashed blue line sits on top of the dashed red line, so you can't see it. The purple shading indicates both red and blue shading in the same area.

===== =====

Of course you graph the boundary line the way you would any linear equation. In this form, it is not too difficult to see that both the x- and y-intercepts are 5. (When x=0, y=5; and when y=0, x=5 for the boundary line's equation x+y=5.) Draw the dotted line through these intercept points, add shading above, and you have your graph.

6 0
3 years ago
Other questions:
  • A car passes a landmark on a highway traveling at a constant rate of
    14·1 answer
  • A bag contains 4 blue coins and 8 red coins. A coin is removed at random and replaced by three of the other color.
    12·1 answer
  • 9+5divided5+2 value 2
    15·2 answers
  • If B is the midpoint of AC, AC= CD, AB=3x+4, AC= 11x-17, and CE= 49 , find DE
    14·1 answer
  • May someone please show full work. How do I do this?
    11·1 answer
  • Find the value of x
    14·2 answers
  • PLEASE HELP ME ANSWER THIS IT WILL HELP A LOT THANK YOU ​
    11·2 answers
  • A boat can travel 120 kilometers on 60 liters of gas. How far can it travel on 197 liters
    5·1 answer
  • 5b+ 11 = 26<br> Can you help me solve this equation
    5·2 answers
  • What is the common denominator of x+5/x+8 =1+6/x+1
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!