Answer:
I don't really understand this question
Step-by-step explanation:
I don't really understand this question
Answer:
x + y = 20
x - y = 4
Add the 2 equations and get
2x = 24
x = 24/2 = 12
Plug x=12 into either equation and get
y = 8
Answer:
This is true!
Step-by-step explanation:
It is natural because it is a positive integer greater than 0, it's whole because its not negative and it is an integer.
Since for the two triangles, the three pairs of corresponding sides are congruent, then the triangles are congruent and their areas are equal.
area = 4 square units
Answer:
Beth is five years old.
Step-by-step:
Beth + Julio + Gerald + Debra = 38
B + (Beth - 2) + (2 x Beth) + (2 x Gerald) = 38
Since we know that Gerald is twice as old as Beth and Debra is twice as old as Gerald. That makes Debra four times older than Beth.
Beth + (Beth - 2) + (2 x Beth) + (4 x Beth) = 38
B + (B -2) + (2B) + (4B) = 38
Simplfy the like terms.
8B - 2 = 38
Add 2 on both sides.
8B = 38 + 2
8B = 40
Divide both sides by 8 to isolate the variable.
8/8 B = 40/8
B = 5
