put 3 into 15 than put 6 into 15 then the answer u get from putting 6 into 15 subtract that by 2 and the answer u get from the u multpy the answer that u got from putting 3 into 15 together
Answer:
x-1
Step-by-step explanation:
if "a number" is x, then one less than that would be subtracting one.
= x-1
Hope this helps!
The answer will be 10 months till they're equal
Answer:
option d
Step-by-step explanation:
Given that a coin is tossed 5 times. Assuming it is a fair coin, head and tail are equally likely.
If we toss 5 times, the number of heads can be either 0 or 1 or 2...5.
Number of outcomes that have 2 heads
=out of 5, two heads and three tails
=5C2
=5(4)/2
=10
So answeris 10
Option d is right answer
Answer:
3/22
Step-by-step explanation:
There's a very neat trick for this kind of problem.
First, choose a letter to represent the number.
n = 0.1363636...
Observe that there is a 2-digit block that repeats ("36"), but that block does not repeat immediately to the right of the decimal point. Do two muliplications, one to put the decimal point in front of the repeating block, the other to put the decimal point after the block.
10n = 1.363636...
1000n = 136.363636...
Here comes the cool part: subtract the first equation from the second.
990 n = 135 See? The repeating decimal parts, all lined up as they are, subtract to zeros.
Finally, n = 135/990 = 15/110 = 3/22
