Answer:True
Step-by-step explanation:
R of Earth = R of Saturn - 51,853.9 km
6,378.1 km = R - 51,853.9 km
R = 6,378.1 km + 51,853.9 km
R = 58,232 km.
To find the cost of one stamp, divide the total cost by the total number of stamps bought:
9.20 / 20 = 0.46
Each stamp cost 46 cents.
Answer:
they tried 24 times
Step-by-step explanation:
you have find out how many shots they made and then find out what times three equals that
We can write
n = 10a + b
where a and b belong to {1, 2, 3, …, 9}.
Swapping the digits produces a new number
n' = 10b + a
and adding 3 to this number makes up 2n,
n' + 3 = 2n
or
(10b + a) + 3 = 2 (10a + b)
so that
19a - 8b = 3
Since we want n to be the smallest possible 2-digit number that meets the criteria, let's start with a = 1. Then solving for b, we find
19 - 8b = 3
16 = 8b
b = 2
So, the number we're looking for is n = 12.
Just to confirm, swapping the digits gives 21, and 21 + 3 = 24 = 2•12.
