Answer:
C
Step-by-step explanation:
The multiples of 3 are
3, 6, 9, 12, 15, ...........
The terms form an arithmetic sequence with common difference of 3.
The sum to n terms is
=
[2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 3 and d = 3, thus
=
[ (2 × 3) + (139 × 3) ]
= 70(6 + 417) ] = 70 × 423 = 29610 → C
Answer: 8 grams
Step-by-step explanation:
We have two units of mass: grams and milligrams
The prescription has 3 grams of compound with 5,000 milligrams of solution.
To know how many grams in total there are in the mixture we must convert
5000 milligrams to grams.
By definition in 1 gram there are 1000 mg.
Then we perform the following operation
Then the total amount of grams in the prescription is: