Answer:
It is B) 3/4a-1/2b-3
Step-by-step explanation:
I did the instructions :)
The second answer which is b the answer is 10 all you do is combine like terms then plug it in and do the next step ill reply when i get the second one
52
Wants 20 charters to replie
Answer:
Step-by-step explanation:
hello :
the n-ieme term is : An=A1×r^(n-1)
A1 the first term r : the common ratio
in this exercice : A1 =15 r = 1/3 n = 4
A4=15×(1/3)^(4) =15×4^4 =3840
Answer:
18
Step-by-step explanation:
Sum the parts of the ratio, 3 + 4 = 7
Divide the amount of marbles by 7 to find the value of one part of the ratio
42 ÷ 7 = 6 ← value of 1 part of the ratio, thus
red marbles = 3 × 6 = 18
