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
labwork [276]
3 years ago
11

SADFHUABSUDHAYSDXNINWYGBXIDNYW PLEASE ANSEWR

Mathematics
2 answers:
Alenkinab [10]3 years ago
5 0

Answer:

15x-6y=48

Step-by-step explanation:

So we have the system of equations:

5x-2y=16\\15x-7y=51

And we want to multiply the first equation by some constant such that the resulting equation matches the coefficient of [x] in the second equation.

We can see that the coefficient of x in the second equation is 15.

So, to match 15, we must multiply the first equation by 3. So:

3(5x-2y)=3(16)

Multiply:

15x-6y=48

And we're done!

user100 [1]3 years ago
3 0

Answer:

Step-by-step explanation:

-15x + 6y = -48

15x - 7x = 51

-x = 3

x = -3

5(-3) - 2y = 16

-15 - 2y = 16

-2y = 31

y = -15.5

(-3, -15.5)

You might be interested in
0.6y + 0.8 = 0.28y + 1.12
gavmur [86]

Answer:

<h2>y = 1</h2>

Step-by-step explanation:

0.6y + 0.8 = 0.28y + 1.12

Move the variable to L.H.S and change its sign:

0.6y - 0.28y + 0.8 =1.12

Move the constant to R.H.S and change its sign:

0.6y - 0.28y = 1.12 - 0.8

Calculate

0.32y = 0.32

Divide both sides of the equation by 0.32

\frac{0.32y}{0.32}  =  \frac{0.32}{0.32}

Calculate

y  = 1

Hope this helps...

Good luck on your assignment..

6 0
3 years ago
Read 2 more answers
If 3(r+300)=6 then find the value of r+300-2
faltersainse [42]

Answer:

0

Step-by-step explanation:

3(r+300)=6

Divide each side by 3

3/3(r+300)=6/3

(r+300)=2

Now we want to find

r+300-2

2 -2

0

8 0
3 years ago
Read 2 more answers
Which value of y will make the inequality y&lt;-1 false
SVEN [57.7K]
0 or 1 or 2............................................
5 0
3 years ago
Read 2 more answers
Please answer ASAP!!! :)<br> .-. .-. .-. .-. .-. .-.
SSSSS [86.1K]

Answer:

I highly recommend that it must be the second story

5 0
3 years ago
singh works at a restaurant where he is paid by the hour plus time and a half for his hours over 40. last week he worked four ho
padilas [110]

Answer:

$8.5 per hour

Step-by-step explanation:

Number of overtime hours = 4 hours

Since overtime starts after 40 hours, then the number of hours worked = 40 + 4 = 44 hours

Total amount earned = $391

Let Hourly pay = x

Overtime pay = 1 1/2x = 3/2x

Therefore ;

40x + (4*3/2x) = 391

40x + 6x = 391

46x = 391

x = 391 / 46

x = 8.5

Hourly pay = $8.5 per hour

7 0
3 years ago
Other questions:
  • Solve 4^5x = 16^2x-1
    15·2 answers
  • In a math class, 1/3 of the students fail a test,  if twelve students have failed the test, how many students are in the class?
    13·1 answer
  • Solve the equation for x. 5(2x − 8) = 90
    9·2 answers
  • SEQUENCES AND SERIES
    7·1 answer
  • Evaluate 3|-4|<br> 2<br> -2<br> 1
    5·1 answer
  • A soup kitchen falls under what type of organization
    9·1 answer
  • Whats 20x165-45+3 ÷7=
    9·1 answer
  • Please help! This is the last question for my math test and I really need a good grade!
    8·1 answer
  • Determine the number of solutions of this equation. Show your work and explain your reasoning.
    10·2 answers
  • Math help please and thank you!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!