1st step, divide both sides by 4
2nd step, move 2 to the right side and change the plus to a minus
3rd step, subtract the numbers
the answer is x=4 I did the work i dont know if it helped but I hope it did. also, sorry for my handwriting I was rushing
Answer:
a = 2 , r = 5
Step-by-step explanation:
The n th term of a geometric progression is
= a
where a is the first term and r the common ratio
Given the 4 th term is 250, then
ar³ = 250 → (1)
Given the 7 th term is 31250, then
a = 31250 → (2)
Dividing the 2 equations gives
= , that is
r³ = 125 ← take the cube root of both sides
r = = 5
Substitute r = 5 into (1)
a × 5³ = 250, that is
125a = 250 ( divide both sides by 125 )
a = 2
Answer:
Bob had 25 cars
Step-by-step explanation:
10+15=25
10 months is how long it would take for them to have the same amount of money.
Answer:
x^2 =5
Step-by-step explanation: