6 cans, 9 bottles, each price is the same, a total of 1.5 yuan

6 cans, 9 bottles, each price is the same, a total of 1.5 yuan

1.5 (6 + 9) = 1.5 (15) = 0.1 (yuan); answer: each 0.1 yuan
In known equal ratio sequence {an}, A3 + A6 = 36, A4 + A7 = 18, an = 12, find n
Let the common ratio of the equal ratio sequence {an} be q, because A3 + A6 = 36, ① A4 + A7 = 18 & nbsp; & nbsp; ②, ② ① can get A4 + a7a3 + A6 = q = 12, so A3 + A6 = a1q2 + a1q5 = 14a1 + 132a1 = 36, the solution is A1 = 27, so the general formula an = 27 × (12) n − 1 = 28-n, let 28-n = 12 = 2-1, the solution is n = 9
The factor of 12 is______ It's multiple______ One
(1) The factors of 12 are: 1, 2, 3, 4, 6, 12, a total of 6; (2) the multiples of 12 are: 12, 24, 36 So there are 6 factors of 12 and countless multiples. So the answer is: 6, countless
6 cans, 9 bottles, each price is the same, a total of 1.5 yuan
1.5 (6 + 9) = 1.5 (15) = 0.1 (yuan); answer: each 0.1 yuan
In known equal ratio sequence {an}, A3 + A6 = 36, A4 + A7 = 18, an = 12, find n
Let the common ratio of the equal ratio sequence {an} be q, because A3 + A6 = 36, ① A4 + A7 = 18 & nbsp; & nbsp; ②, ② ① can get A4 + a7a3 + A6 = q = 12, so A3 + A6 = a1q2 + a1q5 = 14a1 + 132a1 = 36, the solution is A1 = 27, so the general formula an = 27 × (12) n − 1 = 28-n, let 28-n = 12 = 2-1, the solution is n = 9
In 4x3 = 12, 4 and 3 are factors and 12 are multiples. Right or wrong?
No, 12 is a product
That's right
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It should be said that 4 and 3 are factors of 12
A spring outing will be held in the fourth grade. Each of 45 people needs a bottle of drink, which is 3 yuan per bottle. The supermarket is engaged in the activity of buying 5 bottles to get one free. How much is it? How much is it?
Buy 38 bottles, give 7 bottles, need 114 yuan
In the equal ratio sequence {an}, we know that A3, A6 = 36, A4, a7 = 18, an = 1 / 2, find n
Twelve
How to find the factor and multiple of a number
Find the factor and decompose the prime factor by short division
Multiple: multiply this number by a non-zero natural number
Class one of grade four holds a spring outing. Each of 45 people needs a bottle of drink, which is 3 yuan per bottle. When the supermarket is engaged in activities, 5 bottles for free and 1 bottle for free, how many bottles do you need to buy and how much do you need
The number of new bottles = the number of original bottles / (n-1), n means to buy n bottles for one bottle, this is the bottle replacement announcement! Just remember. Bring in: the number of new bottles = the number of original bottles / (5-1) = the number of original bottles / 4, the number of new bottles + the number of original bottles = 455 / 4, the number of original bottles = 45, the number of original bottles = 36, the number of money needed = 36 × 3 = 108. The mistake is that there is no repeated exchange, that is