Answer:
<h3>30 tiles need to buy for same cost in both store.</h3>
Step-by-step explanation:
Let x be the number of tiles to buy for same cost in both store.
18+0.69 · n = 1.29 · n,
1.29n -0.69n =18 or
0.6n =18
n =18/0.6=30
Therefore, 30 tiles need to buy for same cost in both store.[Ans]
Answer:
4900
Step-by-step explanation:
first take 4753 and divide by the percent:97
then take that number and multiply by 100
Answer:
n=2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
11−8n=1−3n
11+−8n=1+−3n
−8n+11=−3n+1
Step 2: Add 3n to both sides.
−8n+11+3n=−3n+1+3n
−5n+11=1
Step 3: Subtract 11 from both sides.
−5n+11−11=1−11
−5n=−10
Step 4: Divide both sides by -5.
−5n
−5
=
−10
−5
n=2
Answer:
It's the first choice.
Step-by-step explanation:
The common ratio is -6/2 = 18/-6 = -3.
2*(-3)^0 = 2*1 = 2.
2*(-3)^1 = -6
2*(-3)^2 = 18
2*(-3)^3 = -54.
So in summation notation is
∞
∑ 2(-3)^n
n=0
