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
fgiga [73]
3 years ago
15

Simultaneous equations please show all working out 6x−5y=0 4x−5y=−10

Mathematics
1 answer:
slamgirl [31]3 years ago
4 0

6x-5y=0
4x-5y=-10 |*(-1)

6x-5y=0 |
-4x+5y=10| +

2x=10
x=5

6*5-5y=0
30-5y=0
30=5y
y =6
You might be interested in
Nelda drove 315 kilometers and used 35 liters of gasoline. Her car averaged how many kilometers per liter of gas?​
Inessa [10]

Going 315 km uses up 35 liters of gasoline

On average, 1 liter of gasoline can travel the number of kilometers:

315 : 35 = 9 liters of gasoline

6 0
2 years ago
What is the rule when you multiply several factors together? an even number of negative signs will result in
IrinaVladis [17]
⓵
When multiplying several factors together, an even number of negative signs will result in a positive answer.

↠ Because when you multiply two negative signs together, the negative signs turn into a positive sign, giving you a positive answer.

↠ If you have an even number of negative signs to multiply, then all your negative signs will be turned into positive signs, giving you a positive answer!

⓶
When multiplying several factors together, an odd number of negative signs will result in a negative answer.

↠ Because when you multiply a negative sign by a positive sign, the negative sign always wins, giving you a negative answer.

↠ If you har an odd number of negative signs to multiply, this means that once you are done multiplying all of the negative signs together except for the last one, you will be multiplying a positive sign with a negative sign.

↠ Here’s another way to see it : if you have 5 negative signs to multiply together, you will start by multiplying the first 2, which will give you a positive result. Then you will multiply the third and the fourth negative signs together, which will also give you a positive result. By that time, you will have two positive signs and one negative sign left, which means you will have no choice but to multiply a positive sign by the last negative sign, resulting in a negative answer!

I hope this helps! If you need a visual example, just tell me, it will be my pleasure! ☻
4 0
3 years ago
SOMEONE PLS HELP!! its due in 10 minutes
melisa1 [442]

Answer:

option 2 is better( 3 pizza with 30 inches diameter)

Step-by-step explanation:

Area of the large pizza = A=πr^2=962.11 * 2( for two pizzas)=1924.22

Area for small pizza : A=πr^2=706.86*3 pizza=2120.58

your buying more pizza for less price

(there are more than one way to figure the answer)

3 0
2 years ago
The enrollment in summer stuff camp went from 10 people to 28 in 5 days. What was the percent of the increase in enrollment
Hatshy [7]

Answer:

140%

Step-by-step explanation:

28-10 = 14 person enrolled

14/10 = 140%

5 0
2 years ago
Does anyone know this
Rudik [331]
The vertex is (-1,2) thats all i know
6 0
3 years ago
Other questions:
  • Which expression is a SUM? A) 5(2 + 3) B) 8 x (6 + 3) C) 5(2) + 2(6 ÷ 3) D) (5 + 2) ÷ (2 + 3)
    13·1 answer
  • 8x-6y=-18 <br>8x+7y=9<br>what does y equals
    6·1 answer
  • If f(x)=2x²-x-6 and g(x)=x²-4, find f(x)÷g(x)
    10·1 answer
  • Divide. 413÷129 Enter your answer, as a mixed number in simplest form, in the box.
    15·1 answer
  • What is the equation of the line parallel to 3x + 5y = 11 that passes through the point (15, 4)?
    8·1 answer
  • Please help i dont understand
    8·1 answer
  • Write an equation that represents the line.
    14·1 answer
  • Find m&lt;1<br> 33°<br> 28°<br> 42°<br> 47°
    11·1 answer
  • Determine whether the relation is or is not a function.
    8·1 answer
  • For 9-10 use the diagram
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!