Answer:
27 inches
Step-by-step explanation:
you divide 2160 by 80 to get the number of inches
2160/80=27
Factor each
4k=2*2*k
18k⁴=2*3*3*k*k*k*k
12=2*2*3
GCF=2
the greatest common factor is 2
Answer:
Step-by-step explanation:
42 × 48
(40 + 2) × (40 + 8)
40 × (40 + 2) = (40 × 40) + (40 × 2) = 1600 + 80 = 1680
8 × (40 + 2) = (40 × 8) + (2 × 8) = 320 + 16 = 336
Then 1680 + 336 = 2016
Answer:
20 or 40 or 50
(there are many others)
Step-by-step explanation:
A counterexample is an example that shows the statement is not true. The statement in this question is that if a number is a multiple of 10 (10, 20, 30, 40, 50, 60...) then it is a multiple of 30. Some numbers are, like 60 and 90, but not all numbers. So for example (counterexample) 20 is a multiple of 10 but NOT a multiple of 30.
40 is a multiple of 10, but NOT a multople of 30.
50 is a multiple of 10, but NOT a multiple of 30.
Answer: 36 hotdogs
Step-by-step explanation: You need to find the least common multiple of 9 and 12.
You can check by multiplying 9 and 12 by consecutive whole numbers until you find a number that they match.
Example:
9*1= 9 , 9*2=18, 9*3= 27, 9*4=36, 9*5=45
12*1=12, 12*2=24, 12*3 =36
They both share 36.