I believe it's 2160. Sounds right to me
Answer:
B. 7/30
Step-by-step explanation:
1st time to pick red is 8/16 8 red cubes out of 16 are red
2nd time to pick red is 7/15 7 red cubes out of 15 are red,
*if one red is picked already
8/16 x 7/15 = 7/30
Answer:
Nina's rate is 12.7059 miles per hour (answer rounded up to four decimal places).
Step-by-step explanation:
Nina can ride her bike 63,360 feet in 3400 sec
1 mile = 5,280 feet
How many miles = 63,360 feet ?
Its 63,360 feet ÷ 5,280 feet × 1 mile = 12 miles
Nina's rate is 12 miles per 3400 seconds
1 hour = 3600 seconds
So in 1 hour, Nina rides × 12 miles = 12.7059 miles (rounded up to four decimal places)
Nina's rate is 12.7059 miles per hour (answer rounded up to four decimal places).
Answer: 394.6 m^3
Step-by-step explanation:
-
X - 3y =2
2x + y= 11 | *3
x - 3 y = 2
6x + 3y = 33
-----------------
7x = 35
x= 35:7
x=5
2x+y=11
2*5 + y = 11
10 + y = 11
y= 11 -10
y= 1