Answer:
we get 180 minutes; this is equivalent to 3 hours
Step-by-step explanation:
Solving this problem is easier if we convert 2 hr 30 min to min: 150 min.
In the ratio 6:5, the 5 represents the 150 min and we need to determine how long the time interval will be if increased in this ratio.
We write and solve an equation of ratios:
6 x
--- = ------ This becomes 5x = 900 through cross multiplication.
5 150
solving this for x, we get 180 minutes; this is equivalent to 3 hours.
Lets Get started :)
The terms given are
- 8 , + 16 , - 32 , + 64
The formula for finding the sum of this geometric sequence is:
Sn =
a₁ = first term of sequence = -8
r = common ration = -2
n = term of sum we need to find = 7
Sn =
= -344There is also another way, by simply adding, but you cannot perform this when they ask for a larger terms sums
Each term are multiplied by - 2, so to find the rest of the terms, we multiply by - 2
+ 64 x - 2 = - 128
- 128 x -2 = + 256
+256 x - 2 = - 512
( - 8 ) + ( 16 ) + ( - 32 ) + ( 64 ) + ( - 128 ) + ( 256 ) + ( - 512 ) (first 7 terms)
= -344
Answer:
This question makes no sense but, the way that's worded, each user receives 12.57 messages a day. If you meant how many messages total its 531681.6 messages.
Answer:
o is the answer as it passes through origin
Answer: B) A large bottle costs $12, and a small one costs $8.
Where L is how many large bottles have been sold, and is how many small bottles have been sold.
In order to find out how much money the large bottle and small bottles cost, we must solve the system of equations.
Step 1: Subtract 3S from both sides
Step 2: Divide both sides by 44.
Step 3: Replace L for
Step 4: Simplify
Step 5: Subtract 108 from both sides
Step 6: Divide both sides by -2.5
Step 7: Replace S for 8
Step 8: Divide both sides by 4
Step 9: Subtract 6 from both sides