Answer:
x = -30/7
Step-by-step explanation:
-7x+3y=30
Let y=0
-7x +0 = 30
Divide by -7
-7x /-7 = 30/-7
x = -30/7
Yes it can be written in ratio
2 : 60 = 1 : 60 if thats what u r asking
Answer:
The invalid statement is 4) Segment AP is congruent to segment PQ.
We conclude that 2) Segment RB is congruent to segment CS.
Step-by-step explanation:
Given, line segment AB & CD
Here, P is the midpoint of AB ⇒ AP=PB
& Q is the midpoint of CD ⇒ CQ=QD
It is given that P is point on AB not on CD ∴ there is no relation of point P with line segment CQ.
Hence, the invalid statement is
Segment AP is congruent to segment PQ.
Now, given that R is the midpoint of AP ⇒ AR=RP
& S is the midpoint of QD ⇒ QS=SD
AB≅CD (Given)
≅
PB ≅ CQ (∵from midpoint statements)
∵ PA=QD ⇒ PR=QS
Because PB≅CQ
PB+PR≅CQ+QS
⇒ RB≅CS
Therefore, Segment RB is congruent to segment CS
First you have to change all the denominators to a common denominator.
So lets change them to 18!
3 1/6 = 3 3/18 8 2/9 = 8 4/18 1 1/2 = 1 9/18. Now add all the numerators of the fractions together that equals 16so your fraction is 16/18 Now add all your whole numbers together that equals 12. So now you have 12 16/18 now reduce to lowest terms equals 12 8/9
In 6300 it is 300 or hundreds, in 530 it is 30 or tens.