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
inna [77]
3 years ago
9

Solve the solution of the equations 10x-3y=3 and 2x+y=9

Mathematics
1 answer:
forsale [732]3 years ago
4 0

Answer:

x=1.875   y=-0.875

Step-by-step explanation:

10x-3y=3                     10x-3y=3

3(2x+y)=(9)3                +<u>6x+3y=27</u>

                               1/16(16x)=(30)1/16  = x=1.875

   10x-3y=3                  10x-3y=3

 -5(2x+y)=(9)-5           -<u>10x-5y=4  </u>                        

                                    1/-8(-8y)=(7)1/-8 = y=-0.875

You might be interested in
Sweetums finds that the cost of making a certain candy bar .15 per bar and that the fixed rate is 600 per week if each bar sells
PilotLPTM [1.2K]

We know that:

Profit = Revenue - Cost

Let us say x number of candies are made per week.

Finding Cost per week:

Cost of making 1 bar = 0.15

Cost of making x bars = 0.15x

Fixed rate of making candies per week = 600

Total cost of making x candies per week = 600 + 0.15x

Now let us find Revenue:

Selling price of each bar = 1.50

Selling price of x bars = 1.50x

Now we have to find profit,

Profit = Revenue - Cost

In order to have profit Revenue - Cost >0

So plugging values of revenue and cost to get number of candies,

1.50x-(0.15x+600)>0

1.50x-0.15x-600>0

1.35x-600>0

1.35x>600

x>444.44

Rounding off

x>444

Answer: The company must sell greater than 444 candies in order to make profit.

7 0
3 years ago
Describe the solution to the inequality
Kitty [74]
It’s on open dot because it doesn’t include the 4 and it shades all the numbers greater then 4 (so it goes to the right).
3 0
3 years ago
How do you solve and check x/4 = -5
Mashutka [201]

Rearrange x/4-(-5)=0

Simplify x/4

-5 = -5/1 = -5*4/4

x- (-5*4)/4 = x+20/4

x+ 20/4 = 0

x+20/4 * 4 = 0*4

The equation now takes the shape: x+20=0

subtract 20 from both sides of the equation: x=-20

Answer: x=-20

6 0
3 years ago
Cooper wrote checks on his checking account for $20 and $35. He also deposited $63 in the account. Which number describes the ch
Licemer1 [7]

Answer:

the change is b 8. 63-55=8 35+20=55

5 0
2 years ago
Which of the following show an element of the sample space for flipping 2 coins? (H= Heads, T= Tails) Check all that apply
Leni [432]

Answer:

All options

Step-by-step explanation:

If two coins are flipped, there are following possibilities

1. Both coins show heads

2. First coin shows heads and second shows tails

3. First coin shows tails and second shows heads

4. Both coins show tails

Let H denote heads and T denote tails

Then the sample space can be translated from the above events as:

Sample  Space for Flipping Two Coins = {HH, HT, TH, TT}

which means that all the options are correct ..

4 0
3 years ago
Read 2 more answers
Other questions:
  • 10 POINTS!!! FULL ANSWER IN STEP BY STEP FORMAT!!
    5·1 answer
  • Please see this and help me
    12·1 answer
  • Calculate how many different sequences can be formed that use the letters of the given word. Leave your answer as a product of t
    5·1 answer
  • Solve the system using the substitution method.
    14·1 answer
  • Graph the points (0, -2), (4, 0) and (2, 0). If you want to create a parallelogram, which of the following points should be used
    15·2 answers
  • 5.) What is the mean of the data?<br> 3, 3, 5, 5, 5, 7, 7, 8, 15, 15
    15·1 answer
  • Solve forx2x=8Give your answer as a fraction in its simplest form.
    5·1 answer
  • Divide.
    8·1 answer
  • The average test scores in a physics class is normally distributed with a standard deviation of 5.4. 50 scores with a sample mea
    13·1 answer
  • What is TU in circle D?<br><br> 5.1<br> 3.4<br> ا<br> O 3.4<br> O 3.8<br> O 7.6<br> O 5.1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!