Answer:
2nd possible answer is the correct one; the const. of var. is 1/3.
Step-by-step explanation:
xy = 1/3 can be rewritten in inverse variation format: Divide both sides by x to isolate y. Then y = (1/3)(1/x). The constant of (inverse) variation is 1/3.
substitution and elimination means that you need to use one equation and substitute it in place of some variable in the other equation.
Consider the above two equations.
Take equation 1, which is 4x-2y=22 => x=(22+2y)/4
substitute the x value gained above in equation 2.
so, 2((22+2y)/4)+4y=6
22+2y+8y=12 => 10y = -10 => y= -1.
Substitute y= -1 in x value obtained in the beginning.
So, x= (22 - 2)/4 => 5.
There fore, x= 5 and y= -1
Hope it helps.
Answer:
168 cm^2
Step-by-step explanation:
Given,
Length ( l ) = 7 cm
Width / breadth ( b ) = 24 cm
To find : -
Area of rectangle = ?
Formula : -
Area of rectangle = l x b
Area of rectangle
= 7 x 24
= 168 cm^2
Answer:
B. 2.75 mph
Step-by-step explanation:
If it took him 2 hours to walk 5.5 miles, 5.5 ÷ 2 = 2.75, which is what he walked in a single hour, meaning he was walking 2.75 mph
Answer:
Where's the number line?
Step-by-step explanation:
