Answer:
n(B) = 1350
Step-by-step explanation:
Using Venn sets, we have that:
Three values are given in the exercise.
The other is n(B), which we have to find. So
So
n(B) = 1350
Answer:
B length = 8 in.; width = 4 in
Step-by-step explanation:
Given
the length L = w + 4
Perimeter = 24 inches
Perimeter of a rectangle
= 2(L + W)
We now have two equations.
Equation 1: L = w + 4
Equation 2: P = 2(L + W)
Substitute L as w + 4 into equation 1. And 24 for p
Therefore
24 = 2(w + 4 + w)
24 = 2(2w + 4)
Distribute 2 into (2w + 4)
We have
24 = 2 x 2w + 2 x 4
24 = 4w + 8
Subtract 8 from both sides
24 - 8 = 4w + 8 - 8
16 = 4w
Divide both sides by 4
16/4 = 4w/4
4 = w
w = 4 inches
Now substitute 4 for w into either of the equations to get
L.
Using equation 1 , we have
L = w + 4
L = 4 + 4
L = 8 inches
Answer:
Step-by-step explanation:
[(2 hours)/(1 day)](14 days)=(18+x)hours
Let's note that the unit of day is in the numerator and denominator. It cancels
[(2 hours)/(1 day)](14 days)=(18 hours)+(x hours)
(2 hours)(14)=(18+x)hours
Let's note that the unit of hours is in the numerators of both sides of the equation. It cancels
(2 hours)(14)=(18+x)hours
(2)(14)=18+x
28=18+x
10=x
HE WILL HAVE TO STUDY 10 HOURS.
Hope you could get an idea from here.
Doubt clarification - use comment section.
