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
strojnjashka [21]
3 years ago
11

Find the solution of equations -x+5y=30 10x-5y=-75

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

Answer:

The solution set would be (-5, 7)

Step-by-step explanation:

To find the solution to the system. simply add them together. This will cause y to cancel and allow you to solve for x.

-x + 5y = 30

10x - 5y = -75

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

9x = -45

x = -5

Now we can place that value into either equation and solve for y.

-x + 5y = 30

-(-5) + 5y = 30

5 + 5y = 30

5y = 35

y = 7

You might be interested in
Can someone answer this please??
ch4aika [34]
Volume of A = 1728

volume of B = 729  

<span> (1728 / 729) = (a / b)^3  (a = width of A, b = width of B)
  a / b = cube root (1728 / 729)  = 4/3   </span><span> b = 10 (given)
a / 10 = 4/3 </span><span>
  a = 40/3 = 13.33333</span>
 so width of A is 13.33m
6 0
3 years ago
If y=2x+10 and X= -2 then what is y
lara [203]
Y=2•(-2)+10
Y=-4+10
Y=6
8 0
3 years ago
Read 2 more answers
Divide 2,756 into 1,375,244​
alexgriva [62]

Answer:

499

Step-by-step explanation:

you take 1,375,244/2,756=499

3 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=1.%20%5Cfrac%7B1%7D%7B3%7D%20%20%2B%20%20%5Cfrac%7B3%7D%7B2%7D%20%20%2B%20%20%5Cfrac%7B6%7D%7B
kondaur [170]

Answer:

1. 3.33333333333

2. -1.3

3. 2.61904761905

4. 2.00833333333

8 0
2 years ago
JJill begins the summer with $500 in her savings account. Each week, she withdraws $20. Her brother, Sam,starts the summer with
meriva

Answer:

7th week

Step-by-step explanation:

Let us represent the number of weeks as x

Jill begins the summer with $500 in her savings account. Each week, she withdraws $20.

$500 - $20× x

500 - 20x

Her brother, Sam,starts the summer with $150 in his account. He adds $30 to his account each week.

$150 + $30 × x

150 + 30x

At what week will both Jill and Sam have the same amount in their account?

We solve this be Equating both Equations together

Jill = Sam

500 - 20x = 150 + 30x

Collect like terms

500 - 150 = 30x + 20x

350 = 50x

Divide both sides by 50

50x/50 = 350/50

x = 7 weeks

Therefore, at the 7 week, Jill and sam would have the same amount in their accounts

3 0
3 years ago
Other questions:
  • A machine produces parts that are either defect free (90%), slightly defective (3%), or obviously defective (7%). Prior to shipm
    14·1 answer
  • Ms. Abrams receives a 4% commission plus a salary of $275.00 per week. If her total sales for one week are $2,880.00, how much d
    6·1 answer
  • What’s the correct answer for this question?
    10·1 answer
  • What does x equal in the equation: <br><br> 5/9-2/7x=19/63
    10·1 answer
  • There is a light post that is 9 feet tall that casts a shadow that is 6 feet long. At the same time, there is a tree that casts
    5·1 answer
  • Solve 10 + 6(–9 – 4x) = 10(x – 12) + 8
    7·2 answers
  • Resolver la inecuacion 3x -14 &lt;7x -2
    13·1 answer
  • The two triangles are similar below. Find the value of x in the following: (NOT DRAWN TO SCALE)​
    8·1 answer
  • The perimeter of a rectangle Is 108 centimeters. If the length of the rectangle is five times the width, what are the dimensions
    11·1 answer
  • 10. Which one of the following pairs of numbers contains like fractions?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!