Answer:
A is the correct answer
Step-by-step explanation:
When x =4 and y =-5, and you want to evaluate equation -3x+2y, you just have to apply it into the equation.
We got the equation as:
= -3x + 2y
= -3*4 + 2*(-5)
= -12 + (-10)
= -12 - 10
= -22
Hope this help you :3
Answer:
(1, 5)
Step-by-step explanation:
Reflecting across the y-axis is the same thing as adding a negative to the y-value.
double negative 5 is the same thing as positive 5 so
(1, 5) is your answer
The teachers plan will raise money is 1.8 times the static graders plan.The teachers plan to raise a dollar is 5/6 times the static graders plan to raise a dollar.More dollars will be raised by the teachers plan compared to the static graders plan.
Step-by-step explanation:
In the question,
Let what the static graders plan to rise to be $x.
Let what the teachers plan to rise to be $ y
You understand that ;
y =210 +x ----------------(this is 210 dollars more than the static graders raise)
y=x+4/5 x -------------------(but only 4/5 as much as the static graders)
Solving the equations to get x and y
210+x=x+4/5x
5(210+x)=5*x+4x
1050+5x=5x+4x
1050=5x+4x-5x
1050=4x
1050/4=4x/4
x=$262.50
y=210+262.50=$472.50
Additionally, for every $60 raised in teachers plan, the static graders raise $50
This means in teachers plan 1$ raised equals 5/6$ raised in static plan
y=5/6x
Learn More
Fund raising comparison brainly.com/question/12421531
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Answer:
Length = 64 cm , width =16 cm
Step-by-step explanation:
Given Perimeter = 160
Let width = x
Length = 4x
Hence perimeter =2 (length) +2 ( width)
160 = 2(4x)+2(x)
160 = 8x + 2x
160 = 10x
160/10 =x
16 = x
Hence width = 16 cm
Put the value of x in 4x
Length= 4(16)
Length =64 cm
Hence length = 64 cm, width =16 cm
