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
bogdanovich [222]
3 years ago
10

Which matrix represents the system of equations shown below? 3x -7y=21

Mathematics
1 answer:
Serjik [45]3 years ago
8 0

\left\{\begin{array}{ccc}3x-7y=21\\4x+5y=11\end{array}\right \\\\.\ \ x\qquad y\ \ const.\\\left[\begin{array}{ccc}3&-7\\4&5\end{array}\right|\left\begin{array}{ccc}21\\11\end{array}\right]

You might be interested in
Dylan and Javier had the same size serving of vegetables for dinner. Dylan finished 2/3 of his vegetables. Javier ate 4/6 of his
Bond [772]
Both because 2 x 3 is 6 2x2 is 4 and you get 4/6 so both have the same amount of vegetables
7 0
3 years ago
Read 2 more answers
5/16 as a decimal..?
madam [21]

Answer:

0.3125

Step-by-step explanation:

type that into a calculator

7 0
2 years ago
Read 2 more answers
Help with this please!!!!!
Strike441 [17]

Answer:

If i am going to be honest with you ,in my own humble opinion without being sentimental of course, without offending anyone who thinks differently from my own point of view,but also by looking into this matter in distinctive perspective i would like to say i have nothing to say

7 0
3 years ago
The skate Sports Store offers 4-wheel and 5-wheel inline skates. On display in the store are the left skates for 17 different st
beks73 [17]

There are 6 skates in store with 5 wheels.

<h3>What is Equation?</h3>

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign.

Here, Let the number of 4 wheel skates in display be x

         and the number of 5 wheel skates in display be y

       Total number of skates = 17

       Total number of wheel = 74

Now, according to question

        x + y = 17     ................(i)

        4x + 5y = 74 ..................(ii)

From equation (i), we get

          x = 17 - y   ................(iii)

put the value of y in equation (ii), we get

      4(17 - y) + 5y = 74

       68 - 4y + 5y = 74

          y + 68 = 74

          y = 6

Put the value of y in equation (iii), we get

          x = 17 - 6

          x = 11

Thus, there are 6 skates in store with 5 wheels.

Learn more about Equation from:

brainly.com/question/10413253

#SPJ1

6 0
1 year ago
Jake has $4,000 invested at 8% annual interest. He has $2,800 more to invest. At what rate
schepotkina [342]

Step-by-step explanation:

with $4,000 invested, Jake has

8% × $4,000 = $320 annually.

in order to have annual interest $628, he has to get more interest $(628-320) = $308.

the rate should be:

308/2800 × 100%

= 308 /2800 × 100%

= 11%

3 0
2 years ago
Other questions:
  • if a school starts at 11:00 and the kids who take the bus have to get to the bus stop 3 hours and 20 minute from there regular b
    7·1 answer
  • If you have a distribution of 50 scores, and you want 5 intervals, what should be the size of your class interval?
    7·1 answer
  • Use the function f(x) and g(x); to answer the question. f(x)=x^2+10;g(x)=x-3. which expression is equal to (f+g)(x)?
    8·1 answer
  • Full-time ph.d. students receive an average of $12,837 per year with a standard deviation of $3000. find the probability that th
    6·1 answer
  • #7 What is the Y-intercept of this table?
    15·1 answer
  • bought a 13 lb package of steaks that cost $45.92 .What is the cost per pound of steak ? Aso, how many pounds do I get per dolla
    7·1 answer
  • sprinter can run 10 yards in 5⁄3 seconds. How long will it take the same sprinter at the same speed to run 30 yards?
    15·1 answer
  • The mean weight of the domesticated house cat is 9.2 pounds with a standard deviation of 3.4 pounds. If a cat has a z-score of -
    5·1 answer
  • Lucía makes braided key chains out of cotton cord. For every 8 feet of cotton cord she has, she can make 3 braided key chains. P
    14·1 answer
  • 100 POINTS!!! <br> PLEASE HELP ITS EZ :)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!