Dolls : teddy bears
6 : 7
if 120 dolls are equal to 6 portions,
7 portions,
(120/6) * 7
140 teddy bears
Step-by-step explanation:
3(x+3)=12
3x+9=12
3x=12-9
3x=3
x=1
Answer:
257 is prime.
Step-by-step explanation:
To evaluate if a number is prime, we just need to evaluate it for the prime numbers that are equal or lesser than the said number's square root.
In this case, √257 = 16.03 so we just need to see if 257 is divisible by <u>2, 3, 5, 7, 11 and 13</u> (the prime numbers that come before 16)
- 257 is odd, so it is not divisible by 2.
- The sum of its digits is 14, therefore, it is not divisible by 3.
- 257 ends in 7, therefore it's not divisible by 5.
- 257/ 7 = 36.71 so it's not divisible by 7.
- 257/ 11 = 23.36 so it's not divisible by 11
- Finally 257 / 13= 19.76 so it's not divisible by 13.
Therefore, 257 is prime.
Answer:
5/6
Step-by-step explanation:
0.41/1.33=0.3125=5/6
Answer:
I believe it is the last choice.
Step-by-step explanation:
