Answer:
-6, and 72F on tuesday
Step-by-step explanation:
If the rate is -3 per day, and 2 days pass (tuesday) take 78-6 which is 72
Answer: it will take her 58 minutes to walk one mile.
Step-by-step explanation:
She walks at a constant rate of 30 seconds per lap and it takes her 46 steps to walk one full lap. It means that she walks 46 steps in 30 seconds.
If each step is approximately 1 foot, it means that the number of feet that she walks in 30 seconds is 46 feet.
1 foot = 0.000189 miles
Therefore, 46 feet would be
46 × 0.00189 = 0.008694 miles
Therefore, if she she walks 0.008694 miles in 30 seconds,
The time it will take her to walk 1 mile would be
30/0.008694 = 3450.66 seconds
Converting to minutes, it becomes
3450.66/60 = 58 minutes
Answer:
$210 dollars
Step-by-step explanation:
we have to do 15 x12 first=180
plus 30=210
please tell me if this helped at all :)
Answer:
Ordinal
Step-by-step explanation:
Trust me
Answer:
B) 21
Step-by-step explanation:
There are 7 cars total and 5 slots to fill for the showroom selections. Put another way, there are 7-5 = 2 cars that don't make it to the showroom floor. Since this value (2) is smaller than the previous number of slots (5), it makes it easier to ask the question "how many ways are there to pick 2 cars that don't make it to the show room floor?" instead of "how many ways are there to pick 5 cars that make it to the showroom floor?". We'll get the same answer either way.
So we have 7 total to pick from for slot 1, and then 6 left over for slot 2. Making 7*6 = 42 permutations. Order does not matter, meaning that picking a red car and then a blue car is the same as picking a blue and then red. The count 42 has double counted, so we divide by 2 to sort this out
42/2 = 21 represents the number of combinations. We can see this if we use the nCr combination formula with n = 7 and r = 2
nCr = (n!)/(r!*(n-r)!)
7C2 = (7!)/(2!*(7-2)!)
7C2 = (7!)/(2!*5!)
7C2 = (7*6*5!)/(2*5!)
7C2 = (7*6)/2
7C2 = 42/2
7C2 = 21
a similar computation happens if you use n = 7 and r = 5.
