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
NARA [144]
3 years ago
12

Solve the simulataneous equations. 5x-4y=19 x+2y=8

Mathematics
1 answer:
inysia [295]3 years ago
7 0

Answer:

(5, 1.5 )

Step-by-step explanation:

Given the 2 equations

5x - 4y = 19 → (1)

x + 2y = 8 → (2)

Multiplying (2) by 2 and adding to (1) will eliminate the y- term

2x + 4y = 16 → (3)

Add (1) and (3) term by term to eliminate y

7x + 0 = 35

7x = 35 ( divide both sides by 7 )

x = 5

Substitute x = 5 into either of the 2 equations and solve for y

Substituting into (2)

5 + 2y = 8 ( subtract 5 from both sides )

2y = 3 ( divide both sides by 2 )

y = 1.5

solution is (5, 1.5 )

You might be interested in
Please help me with this​
kolbaska11 [484]

Answer:

c

Step-by-step explanation:

but its a negative 2 so but it would be 4 times 2 its 4 times negative 4

3 0
3 years ago
Now see if you can solve these word problems about time and distance.
ladessa [460]

Answer:

3.5 hours

Step-by-step explanation:

Ediburgh -------------------------------350 miles-------------------------London

Let the distance traveled by train from Edin to London be "x"

hence the distance traveled by train from London to Edin would be "350-x"

  • The rate of Edin to London train is 60
  • The rate of London to Edin train is 40

Let the time they meet be"t"

Now, we know distance formula to be D = RT

Where

D is distance

R is rate

and

T is time

<u>Train from Edin to London:</u>

x = 60t

<u>Train from London to Edin:</u>

350-x = 40t

Solving for x:

350 - 40t = x

We put this into first equation:

x = 60t

350 - 40t = 60t

350 = 100t

t = 350/100

t = 3.5

They meet after 3.5 hours

4 0
3 years ago
You cut off half of a strip of paper.Then you cut off half of the piece that is left.Then you cut off half of the remaining piec
7nadin3 [17]

It goes like this 1/2, 1/4, 1/8. But if your asking about what fraction didn’t get affected than that just zero because the original peace was cut in half.

If that’s not what you mean can you please elaborate to me!

7 0
3 years ago
A 32 ounce bottle of fresh-squeezed fruit juice sells for $3.29. A 24-ounce bottle of the same juice sells for $1.97. Which bott
ivann1987 [24]
The 24 oz. is the better deal. For the 24 oz, each ounce is worth $.08 compared to $.10 per ounce for the 32 ounce bottle.
5 0
3 years ago
If you double a number and then add 32, the result is 80. what is the number?
maw [93]
80-32 ÷ 2= 24
( you just do it sdrawkcab)









backwards
3 0
2 years ago
Read 2 more answers
Other questions:
  • angie puts 1 stamp on each envelopes. she puts stamps on 7 envelopes. how many stamps does angie use?
    8·2 answers
  • If 15 counters are the whole set how many are three fifths of the set?
    5·1 answer
  • MR Husted has a wooden parallelogram which has a height of 4 centimeters and a base of 11 centimeters. ms Henningsen also has a
    15·1 answer
  • Without using a calculator, what is 30% of 546? (You can round up to avoid decimal points)
    12·2 answers
  • Module 3 dba flvs mr McDonald I need it pronto
    11·1 answer
  • Find the profit obtain by a trader by selling 50 mangoes each Rs 12.00 which bought at the price of Rs. 8 each .
    6·1 answer
  • 13=d÷6 Solve this pleaseeeee
    12·1 answer
  • Construct "u - v", Label and find the component form and magnitude of the resultant vector.
    11·1 answer
  • Help pls!! Find the marc GFD
    12·1 answer
  • If I had 20 apples and I have to share with 5 peoplw how many apples each would each person get. 20 Points.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!