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
Andreyy89
3 years ago
12

Solve the following system of equations algebraically: 4x - 5y = 18 3x – 2y = 10

Mathematics
1 answer:
fiasKO [112]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

You might be interested in
Brian has three basketball cards and five baseball cards what fraction of Brian‘s cards are baseball cards
Anon25 [30]

Answer:

5 / (3 + 5) = 5/8 are baseball cards

4 0
3 years ago
Read 2 more answers
CAN someone help me PLZZZZ<br><br>Find the rate change of rom 2008 to 2016?
anyanavicka [17]

Answer:

22.25

Step-by-step explanation:

1302-1124/2016-2008

6 0
3 years ago
The table below shows the preferences of high school and college students:
Bas_tet [7]
B. looks like the way to go.

5 0
3 years ago
The local shelter decided to build an addition for cats hey borrowed $6300 from a local bank at a rate of 8% the high school hel
Zepler [3.9K]

Answer:

$378

Step-by-step explanation:

To find the interest that the shelter payed on this loan, we use the formula: I=Prt.

P = $6,300

r = 8% or 0.08

t = 9/12

Now we substitute the values into our formula.

I=Prt.

I=6,300(0.08*\dfrac{9}{12})

I=6,300(0.08*0.75)

I=6,300(0.06)

I=$378

So the shelter payed a total of $378 in interest to the bank.

3 0
3 years ago
Please help will give brainliest
kotykmax [81]

Answer:

c

Step-by-step explanation:

10 times 8 = 80

80 times 3 = 240

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the 30th term of the linear sequence below? −4, −1, 2, 5, 8
    14·1 answer
  • Whats 25% of 90 in full explanation
    12·2 answers
  • Can u help pls thank uu so much ?
    13·1 answer
  • A​ cone-shaped vase has height 29 cm and radius 7 cm. An artist wants to fill the vase with colored sand. The sand comes in smal
    5·1 answer
  • Which function models the area of a rectangle with side lengths of 2x – 4 units and x + 1 units? What is the area when x = 3?
    8·1 answer
  • Find the area of shaded part, write the answer in simplest form
    9·2 answers
  • 4.<br> 3.7 cm<br> 4.5 cm<br> 2.2 cm<br> V=
    11·2 answers
  • Find the volume of the rectangular prism.
    14·1 answer
  • Need answer quick please answer quick
    9·1 answer
  • The graph below shows the height of a tunnel f(x), in feet, depending on the distance from one side of the tunnel x, in feet:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!