Can someone help me with system of equations?

1 answer:

3 0

2x + y = 350
x + 2y = 475
3x + 3y = 825
x + y = 275
x = 275 - y
(plug back into first equation)
2(275 - y) + y = 350
550 - 2y + y = 350
550 - y = 350
-y =-200 or y = $200 (dog)
therefore, x = $75 (cats)
Check
2(75) + 200 = 350
75 + 400 = 475
HAPPINESS! :)

You might be interested in

Please helppp ;-; how do you determine the end behavior of a function?

Karolina [17]

Answer:

End Behavior of a Function. The end behavior of a polynomial function is the behavior of the graph of f( x ) as x approaches positive infinity or negative infinity. The degree and the leading coefficient of a polynomial function determine the end behavior of the graph.

Step-by-step explanation:

3 0

2 years ago

What is the order of operation of 100 + 6² - 9

Kipish [7]

Okay so you would use PEMDAS (parentheses, exponents, multiply, divide, add, and subtract) so there are no parentheses so you do the exponents
${6}^{2} = 36$
then you do the rest so 100+36=136 and then 136-9=127 so the answer is 127

6 0

3 years ago

Let f(×)=2× and g(×)=2^× Graph the fuctions on the same coordinate plane. What are the solutions to the equation f(×)=g(×) Enter

kari74 [83]

Answer:

x=2, or x=1

Step-by-step explanation:

Given the equations as

f(x)=2x and

g(x)=2^x

Using a graph tool the equations will intersect at points (2,4) and (1,2)

x =2 or x=1

7 0

3 years ago

What is the total price of an iPhone that is $99 plus 6.5% sales tax?

kodGreya [7K]

Answer:

iphone 12 is trash

Step-by-step explanation:

3 0

2 years ago

Illinois' population is now 12.5 million and decreasing by 0.1 million each year. On the other hand, Arizona's population is 6.9

Gekata [30.6K]

Answer:

8 years

Step by step guide:

100,000 x 8 = 800,000

600,000 x 8 = 4,800,000

6,900,000 + 4,800,000 = 11,700,000

12,500,000 - 800,000 = 11,700,000

7 0

3 years ago