Combine the two equations in the right amounts to eliminate y :
-2 (2x + 3y) + (3x + 6y) = -2 (17) + 30
-4x - 6y + 3x + 6y = -34 + 30
-x = -4
x = 4
Solve for y :
2x + 3y = 17
8 + 3y = 17
3y = 9
y = 3
Answer:
ok
Step-by-step explanation:
Answer:
11 and 33
Step-by-step explanation:
The the smaller number be . Since the other number is 3 times as large as the other, we can represent the large number as . Because they add up to 44, we have the following equation:
Combine like terms:
Divide both sides by 4:
Substitute into to find the larger number:
Therefore, the two numbers are 11 and 33.
Answer:
the first one is 2.5, because if you divide the blue in half, you need to divide the yellow in half too
Answer 2:
copy and paste what i write or something:
3+2+1+1= 1 plum purple gallon. So for 3 gallons, you multiply each by 3.
So, Red tint=9
Blue tint=6
Yellow tint=3 and
White tint=3
Answer:
B
Step-by-step explanation:
The problem wants you to PLUG IN x into the correct equation.
1) f(-1) means -1 equals x
f(3) means 3 equals x
For example g(9) means 9 = x and f(3/5) means 3/5 = x and so on.
2) Now that you know x equals two numbers -1 and 3 you have to plug them into a equation.
3) Which equation do you plug it in you may ask? You must plug in -1 into x^2 +3 BECAUSE the condition next to it says you can only plug in numbers to x^2+3 greater than or equal to -1 and less than 2. Therefore, you can plug in -1 to this equation.
-1^2 +3 = <u>4</u>
4) Now you have the number 3. Where do you think we should plug #3 into? Well you can plug it in to the first equation because the condition only allows numbers less then -1. the only option is the last one!!
1, for x >= 2 because 3 is certainly bigger than 2.
This means any number greater than or equal to 2 has to be 1.
SO OUR ANSWER IS 4 AND 1