w/4 = 43
Multiply by 4 for both sides
w/4(4)= 43(4)
Cross out 4 and 4 , divide by 4
w= 172
Answer: 172
Step-by-step explanation:
90° counterclockwise = 270° clockwise
Algebraic Representation : 270° clockwise turn,
( x , y ) ==> ( y , - x )
C ( 5 , 1 ) ==> C' ( 1 , - 5 )
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Answer:
{7, -2}
Step-by-step explanation:
6x-7y=2
2x+3y= -10
multiply the second one by -3
6x-7y=2
-6x-9x=30
-16y=32
y= -2
2x - 6 = -10
2x= -4
x= -2
You could use a proportion and cross-multiply. For example, if the reduced rectangle had a length of 3 and a width of 5, and then the one measurement of the original rectangle is length of 7, you could set a proportion like:
3/5 = 7/x
Then, cross multiply to solve for x, and that sound give the missing measure.