Answer:
Plan A every two hours and Plan B every hour
Step-by-step explanation:
Plan A 3 hours Friday and 9 hours Saturday - total of 12 hours and he worked a total of 6 hours. 12/6=2
Plan B 5 hours Friday and 7 hours on Saturday - with a total of 12 hours and he worked 12 hours. 12/12=1
Answer:
39 + 5d
Step-by-step explanation:
First multiply 5 by 9 and 5 by d then subtract 6 from 45 (which you get from multiplying 5 by 9) and you get 39 and multiply 5 by d so you get 39 + 5d
0 is the real number for which there is no multiplicative inverse.
<u>Solution:</u>
Need to find a real number not having multiplicative inverse. Let’s first understand what is multiplicative inverse.
<em>Multiplicative inverse of a real number</em> is that number which when multiplied to the real number gives result as 1.
That is product of real number and multiplicative inverse is always 1.
Can you imagine any real number which whatever be the case, when multiplied by any number will never give result as 1.
Think about 0.
Whenever any number multiplied by 0, result is always zero. So there will never be a case when zero multiplied by any number gives result as 1.
Hence 0 is that real number for which there is no multiplicative inverse.
It's pretty simple! So it looks like you are learning proportions. You would cross multiply to achieve your answer.
First, let's do your first problem:
2 12
--- = ----
5 n
You would take 5 and multiply it by 12 and get 60! Then you would do the same with 2 times n, giving you 2n (because you do not know what n represents YET.)
Now you should have this:
60=2n OR 2n=60
We must isolate our variable, in order to do that, get rid of two! But how? You would do this by dividing 2n by 2. Yet in equations, when you do something to one side, you must do it to the other because they must be EQUAL! (hence the "equa-" in equation)
2n=60
--- ---
2 2 DIVIDE 2 into 60
----------
n= 30 Simplify!
Your final answer for the first question is n= 30!
Answer:
2,3,5,7,11
Step-by-step explanation:
see above for the first five prime numbers
