Answer:
well how menny hours per day?
Step-by-step explanation:
Mean is the middle
Median is the average
Mode is most often.
Multiplicative inverse of 1/2 = 2/1 = 2
Thus, the multiplicative inverse of 1/2 is 2.
Answer
The Associative Property of Addition
Step-by-step explanation:
Because according to that property, you can group any two numbers and the answer will be the same.
Plug all three answers in and see which one does not equal 0
A: 2(1)+3(1)-7-12≠0
B: 2(6)+0-0-12=0
C: 2(3)+3(3)-3-12=0
So A. I don't know why it says two (?) points?
Answer:
t = 6 4/25 hours
Step-by-step explanation:
The formula to find out how long it takes them to do the job is
1/m + 1/ a = 1 /t
where m is the time for Matthew to do the job
a is the time for Arianna to do the job
and t is the time for them to do the job together
m = 14 hours
a = 11 hours
Substituting what we know
1/14 + 1/11 = 1/t
Multiplying by 154t (14*11*t) so we can clear the fractions
154t*(1/14 + 1/11) = 1/t* 154t
11t + 14t = 154
Combine like terms
25t = 154
Divide by 25
t = 154/25
t = 6 4/25 hours