Answer:
9 boxes cost Rs 405
Step-by-step explanation:
1 box costs 45.
so, how much are 2 boxes ? what do you think ?
right, twice as much : 2 × 45 = 90
how much are 3 boxes ?
now it is three times the cost of 1 box : 3 × 45 = 135
do you see the pattern ?
it is really simple.
that is also the origin why we describe a multiplication by "times". we take a single item so and so many times.
when you see something like this, you know, they are talking about multiplication.
so, here we want to know how much 9 boxes cost.
therefore,
9 × 45 = 405
is the answer.
100 = 10^2
so 10^9 * 10^2 = 10^11 kilometers in 100 years
A. This expression has 4 terms
B. The constants are -5, 3, 72 and 10
C. The third term is 72
D. The coefficient is y
Answer:
12
Step-by-step explanation:
The given geometric series is
We want to determine the first term of this geometric series.
Recall that the explicit formula is
To find the first term, we put n=1 to get:
This gives us:
Therefore the first term is 12
The formula of the volume of the rectangular prism:
V = length × width × height
We have:
