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
geniusboy [140]
3 years ago
5

30 pts pls help

Mathematics
1 answer:
kodGreya [7K]3 years ago
8 0

Answer:

(8, 5) (Answer C)

Step-by-step explanation:

Write this system of linear equations in a (vertical) column:

4x - 3y = 17

5x + 4y = 60

Let's eliminate y through addition/subtraction:

Multiply 4x - 3y = 17 by 4, obtaining 16x - 12y = 68, and

multiply 5x + 4y = 60 by 3, obtaining 15x + 12y = 180.  Then we have:

16x - 12y = 68

15x + 12y = 180

----------------------

31x          = 248, and so x = 248/31 = 8.

Now find y.  Substitute 8 for x in 5x + 4y = 60:  5(8) + 4y = 60, or

4y = 60 - 40 = 20.

Thus, y = 20/4, or y = 5.

The solution is (8, 5) (Answer C)

You might be interested in
What is the equation of the line?
Neporo4naja [7]
Y=4 because y is 4 all the time
3 0
2 years ago
-4/3,4/9,-4/27,4/81,-4/243...<br><br> what is the common ratio! HELP ASAP
kaheart [24]
Answer: The common ratio is -1/3

-----------------------------------------------------------

Work Shown:

Pick any term to divide it by the previous term. I'm going to pick the second term and divide it by the first term.

r = common ratio
r = (term 2) divided by (term 1)
r = (4/9) divided by (-4/3)
r = (4/9) * (-3/4) 
r = (4*(-3))/(9*4)
r = -12/36
r = -1/3
The common ratio is -1/3

This means you multiply each term by -1/3 to get the next term

For instance
term 2 = r*(term 1)
term 2 = (-1/3)*(-4/3)
term 2 = ((-1)*(-4))/(3*3)
term 2 = 4/9

3 0
3 years ago
Pleas help!!!! Brainliest and points!!
andreev551 [17]

Answer:

Step-by-step explanation:

Hi!

Here is the formula for point slope form: y-y1=m(x-x1)

Our slope in this case is 5, and our points are (1, 9). 1(x1) and 9(y1)

So, if we substitute our given data into the formula, here is what we will get.

y-9=5(x-1)

Thus, our answer should be:

y-9=5(x-1)

I hope this helps!

:)

5 0
3 years ago
Read 2 more answers
Evaluate the expression and select the appropriate response. 4.25 + 3.50 + 8.25
fomenos

Answer:

The answer is 16.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve for x. Round to the nearest tenth, if necessary.
DENIUS [597]

Answer:

x=3.5 cm

Step-by-step explanation:

90/2 = 45 degrees

Soh Cah Toa

We have opposite and hypotenuse making sin.

Length×Sin(Angle)

5×Sin(45) = 3.53553cm

Rounded the the nearest tenth makes 3.5cm

6 0
3 years ago
Other questions:
  • Use subtraction 8×25×23
    10·2 answers
  • A girl is 21 years old and her brother is a third her age. When the girl is 36, what will be the age of her brother?
    7·1 answer
  • How do you know if a rate of change is positive or negative?
    5·1 answer
  • How do you find surface area
    7·1 answer
  • Answer the following questions given the ordered pairs below. {(-5,0). (-3,2), (0,4), (2-7)} a) what is the domain? b) What is t
    14·1 answer
  • Classify the following triangle. Check all that apply.
    5·2 answers
  • When Violet was born she weighed 54 pounds. At 5 months old she weighed 16.3 pounds.
    9·1 answer
  • Please help me with acellus
    13·2 answers
  • 12 male birds for every 9 female birds ratio
    11·2 answers
  • Help plz:))) I’ll mark u brainliest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!