Answer:
There are 91 dimes in the jar.
Step-by-step explanation:
5n+10d= 1455
n+d = 200
n=200-d
5(200-d) + 10d=1455
1000-5d+10d=1455
1000+5d=1455
5d=455
d=91
91 dimes
1) we calculte the driver´s unit rate of speed.
s=speed
d=distance
t=time.
s=d/t
45 miles------------------3/4 hour
x----------------------------- 1 hour
x=(45 miles * 1 hour) / (3/4 hour)=60 miles.
speed or rate=60 miles / 1 hour.
2)we calculate the distance traveled at 1.25 hour.
distance=rate * time
distance=(60 miles /1 hour) * 1.25 hour=75 miles.
Answer: the driver would´t go late, because, the distance is 65 miles, and he can travel 75 miles if he drive with that speed .
The hundreds place is underlined: 16,<u>4</u>73.
Look at the number to the right of the hundreds place. It is a 7. Because 7 is greater than 5, round up
16473 rounded to the nearest hundred is 16500
Next, she takes the number to round to the nearest thousand.
Remember that 5 and greater round up.
16500 rounded to the nearest thousand is 17000
17000 is your answer
hope this helps
