Answer:
Step-by-step explanation:
Let Waldo's speed = W
Let Ralph's speed = W + 15
A
Waldo's distance = speed * Time
Time = 4 hours.
Speed = w
distance = 4 * w
B
Ralph's speed is W + 15. It's not clear if you need a number. We'll get around to that later.
C
Ralph traveled 4*(W + 15)
D
4w + 70 + 4(W + 15) = d
You really can't get a definite answer to these questions. Even if you knew whether they were heading away from each other or towards each other it wouldn't help.
Answer:
area= 41 cm^2
Step-by-step explanation:
area=5 x 8.2 = 41 cm^2
divide the rhombus in half either way and you have two identical triangles.
area of triangle =0.5 x base x height
double that for the two triangles and you have the area of the rhombus.
Answer:
You basically answer the problem.
Evaluating is the same as answering
Answer:
The values of 
and 
for a linear system with infinitely many solutions are -2 and 5, respectively.
Step-by-step explanation:
Let 
, if this linear system has infinitely many solutions, then the following conditions must be met:
and 
.
and
The values of and for a linear system with infinitely many solutions are -2 and 5, respectively.
