Answer:
x=90/7
Step-by-step explanation:
7x=90
x=90/7
2.25m + 2(2.25m) + 90 cm =
2.25m + 4.50m + 90 cm
6.75m + 90 cm
1 cm = 0.01m...so 90 cm = 90 * 0.01 = 0.9m
6.75m + 0.9m = 7.65m <===
OR..
1m = 100 cm....so 7.65m = 7.65 * 100 = 765 cm <===
Answer:
B. 9/20
Step-by-step explanation:
the circumference is 2r. Since the radius is one, that would be 2.
81/360=0.225, or 22.5% of the circumference. 22.5% of 2 is 0.45. 0.45=9/20, so the answer is B.
CHECK: 2 = 6.283
6.283x0.225=0.14137, or 9/20
The perimeter in 60 minutes is:
2 * pi * r
2 * pi * 8
50.26548246 inches
It moves from 12 to 2:
The perimeter will be:
(10/60) * (50.26548246)
Rewriting:
= (2/12) * (50.26548246)
= (1/6) * (50.26548246)
= 8.37758041
round to two-decimal places:
= 8.38 inches
Answer:
the top of the minute hand moves 8.38 inches
29.18-25.49=3.69
When you subtract from bottom to top, you can’t subtract 9 from 8 so you would have to borrow the 1. That would then make it an 18-9 to get 9. Then since you borrowed the 1, you can’t subtract 4 from 0 so you would borrow 1 from the 9 and it then becomes an 8. After that you can just easily subtract the numbers.
