Answer:
E
Step-by-step explanation:
Sjsjdjddjdjdjjddjdjdjdjdjdndnsnsnsbs answer is E
Answer:
4.5 miles per hour is her rate in miles per hour
Step-by-step explanation:
We want to convert 20 ft per second to miles per hour
If she jogs 20 ft in 3 seconds , then in one second , she will jog 20/3 ft
So convert 20/3 ft/second to miles per hour
Mathematically;
1 mile = 5280 feet
So one feet = 1/5280 mile
1 hour = 3600 seconds
1 second = 1/3600 hour
So, to go from miles/hour to ft/second ; we shall multiply by 1/5280 and divide by 1/3600
Hence; we have;
(20/3 * 1/5280)/1/3600
= 20/3 * 1/5280 * 3600/1
= 4.4545 which is 4.5 miles per hour
Answer:
I'm pretty sure its C but some please correct me if I'm wrong.
Answer:
x = -1, y = 1
Step-by-step explanation:
2x-y=-3 // y = 2x + 3 (eqn 1)
3x+y=-2 (eqn 2)
sub 1 into 2
3x + 2x + 3 = -2
5x = -5
x = -1
sub x = -1 into eqn 1
y = -2+3
y = 1
