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
DochEvi [55]
3 years ago
7

-1x-9y=13 -1x+7y=-19

Mathematics
1 answer:
Olegator [25]3 years ago
6 0
-1x=13+9y
(13+9y)+7y=-19
13+16y=-19
16y=-6
•Y=6/16
-1x-(9•6/16)=13
-1x-3.375=13
-1x=16.375
•X=-16.375
You might be interested in
You use 33 cans of soup to serve 55 people. If you want to serve 2020 people, what should you do?
sveticcg [70]
First off, we need to find how much would a people need,by dividing the amount needed.

The equation of how much a people would need:

55÷33
=1.67 or 55/33 (it would be best to keep it in fraction to get a more precise answer)

To find out how much 2020 people need ,we would mutiply the answer above by 2020:

55/33×2020
≈3366.7
≈3367

Thus,you would have to prepare 3367 can of soup.

hope it helps!
3 0
3 years ago
HELPPP ME I NEED HELP
wariber [46]

Answer:

I think the answer is

no

no?

yes

yes

yes

no

Step-by-step explanation:

I'm not really sure if this is correct but from my textbook it says that the answer cannot have a math problem in it (E.g x = 1 + 2.3).

I am sorry if this is incorrect

If it is correct, can I have brainliest please?

8 0
2 years ago
When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was 3:2. After 144 pineapple muf
Elena L [17]
3x-\ pineapple\\
2x-\ mango\\\\
after\ selling\ 144\ pineapple:\\
3y-\ pineapple\\
5y-\ mango\\\\
3x-144=3y\ \ | add\ 144\\
2x=5y\\\\
3x=3y+144\ \ \ | divide\ by\ 3\\
2x=5y\\\\
x=y+48\\2x=5y\\\\
2(y+48)=5y\\
2y+96=5y\ \ \ | subtract\ 2y\\
96=3y\ \ \ | divide\ by\ 3\\
32=y\\
x=32+48=80\\\\
There\ were\ 240\ pineapple\ muffins.

6 0
3 years ago
Please help with question 2, I’m too tired to think right now, and it’s for my little sister and it’s due tomorrow! Ignore the n
marishachu [46]

Answer:

2000 L

Step-by-step explanation:

There are 1250 L of water in a tank at present. If the tank is 0.625 full, what is the capacity of the tank?

The simple solution is:

1250 L ÷ 0.625 = 2000 L

The algebraic solution is:

Let <em>c</em> equal the capacity of the tank.

Therefore, <em>c</em> × 0.625 = 1250.

Divide both sides by 0.625:

<em>c</em> × 0.625 ÷ 0.625 = 1250 ÷ 0.625

And simplify:

<em>c</em> = 1250 ÷ 0.625

<em>c</em> = 2000

5 0
3 years ago
11. What's the area of the triangle below?8 m6 mA. 7 square metersB. 24 square metersC. 96 square metersD. 48 square meters
Allushta [10]
8 times 6 = 48.. hope this helps
5 0
3 years ago
Read 2 more answers
Other questions:
  • A phone manufacturer wants to compete in the touch screen phone market. Management understands that the leading product has a le
    11·1 answer
  • -3|6-2x|+2=-10 <br> Solve absolute value- help pls!
    12·1 answer
  • Solve the following system of equations by substitution: 5x + 2y = 14 y = x – 7 Question 11 options: (–3, 4) (2, –5) (4, –3) (–5
    11·1 answer
  • Where does the function y=2x-7 cross the y axis
    14·1 answer
  • The area of a circle is 28.26 square centimeters. What is the circle’s diameter?
    10·1 answer
  • Determine the domain and range of the function f(×)=<br><img src="https://tex.z-dn.net/?f=2%20%5Csqrt%5B3%5D%7B108%7D%202x" id="
    10·2 answers
  • If s(x) = 2 - x2 and t(x) = 3x, which value is equivalent to (st)(-7)
    10·1 answer
  • Avani is building a rectangular play area. The length of the play area is 7.5 meters. The width of the play area is 5.3 meters.
    8·1 answer
  • 2. Rainey graphed a function with exponential growth and an initial value of 15. Which of the following could represent the equa
    15·1 answer
  • Help with proving the following
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!