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
SVEN [57.7K]
3 years ago
15

2x - y = 5 x + 3y = 7 What is the value of the system determinant?

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
8 0
2x - y = 5
x + 3y = 7

I'm assuming you mean the coefficient matrix.
\left[\begin{array}{ccc}2&-1\\1&3\end{array}\right] =(2)(3)-(-1)(1)=6+1=7
tangare [24]3 years ago
4 0

was right but the y-deternamint was 9


You might be interested in
Select the story problem that this equation represents 1/2 / 2/5
grin007 [14]

Answer:

d is your answer

Step-by-step explanation:

8 0
3 years ago
Can someone pleaseee help me??:(
sukhopar [10]

5 cal

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Kacie bought x, number of pencils. She paid $0.91, including tax, per pencil. She gave the cashier $10 and received $6.36 back i
wel

Answer:

She purchased 4 pencils

Step-by-step explanation:

Here, we are to calculate the number of pencils bought given the information in the question.

The amount per pencil is $0.91. The total amount of this since she bought x number of pencils is $0.91 * x = $0.91x

Now, after paying $10, she was given $6.36 as change

what this means is that what the pencils cost is 10-6.36 = $3.64

Now we equate the cost in terms of x to this;

0.91x = 3.64

x = 3.64/0.91

x = 4 pencils

4 0
3 years ago
Read 2 more answers
The width of a rectangular garden is 23 and a half feet and the perimeter of the garden is 134 feet. Qhat ia the area of the gar
aleksandrvk [35]

Answer:

1022.25 square feet

Step-by-step explanation:

The length and width sum to half the perimeter, so the length is ...

P/2 -W = length = 134/2 -23.5 = 43.5 . . . . feet

The area is the product of length and width, so is ...

A = LW = (43.5 ft)(23.5 ft) = 1022.25 ft^2

The area of the garden is 1022.25 ft^2.

3 0
4 years ago
Estimate the sum using compatible numbers Enter the answer in the box. 339+214. use __ for 339. Use 200 for 214. __ + 200= __​
babymother [125]
Use 340 as an estimate for 339.
339+214 is approximately 340+200 = 540
4 0
3 years ago
Other questions:
  • Write a problem that the expression 3(-7) -10+25= -6 coud represent
    15·1 answer
  • The following frequency table summarizes yesterday's orders at Sizzlin' Skillets.
    11·2 answers
  • Find all the missing dimensions when a=9, b=13, c=64°
    11·1 answer
  • Select the table that represents the ratio of grey trapezoids to white trapezoids.
    15·1 answer
  • NEED HELP ASAP !!!<br> Part C solve the equation or inequality for the unknown number show your work
    5·1 answer
  • If you flip a coin and roll a 666-sided die, what is the probability that you will flip a heads and roll an even number?
    15·2 answers
  • Radius and diame
    5·1 answer
  • Find the value of x.<br><br> help pls
    10·1 answer
  • The figure below shows circle with center O and two perpendicular diameters
    6·1 answer
  • A teacher uses 36 centimeters of tape to hang up 9 student projects. At that rate, how much tape would the teacher need to hang
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!