Answer:
79
Step-by-step explanation:
equation:
18x - 8 + 11x = 20x +19
Add like terms:
29x - 8 = 20x + 19
add 8 to both sides:
29x = 20x + 27
subtract 20x from btoh side:
9x = 27
Divide both sides by 9:
x = 3
substitute x into the equation for SU
SU = 20(3) + 19
Solve:
SU = 79
Answer:
D
Step-by-step explanation:
I just answered it on a test its D “ Without changing the width of the compass..”
Answer:
8793
Step-by-step explanation:
9×1013= 9117
3×108=324
9117-324= 8793
Answer:
he first is a numerical sentence and the second is an equation
Step-by-step explanation:
equation because there's "="
Answer:
The dog will catch the cat at 33.33 sec
Step-by-step explanation:
Let
x------> distance the cat runs before being caught by the dog,
Remember that
The speed is equal to divide the distance by the time
v=d/t
solve for t
t=d/v
so
equate the time
x/24=(200+x)/30
30x=24(200+x)
30x=4,800+24x
30x-24x=4,800
x=4,800/6=800 m
t=d/v=800/24=33.33 sec
or
t=(800+200)/30=1,000/30=33.33 sec
