Ben - 3/8
RV - 1/8
Total = 80
Ben = 3/8 ( 80 ) = ( 3 ) ( 10 ) = 30 cars
Rv = ( 1 / 8 ) ( 80 ) = ( 10 ) = 10 cars
Ben's have sold 20 cars more than RV
Hope helps!
Answer:
4 2/3 units cubed
Step-by-step explanation:
Since they didn't give the 3rd side length, but they gave us one side's area we can just do 3 1/3 times 1 2/5 which gives us 14/3 which then is reduced to 4 2/3 units cubed.
Oh and btw I see that's a khan academy question.
Answer:
Step-by-step explanation:
Perimeter is equal to twice the length plus twice the width
Perimeter = 2L + 2W factoring out the 2
Perimeter = 2(L + W) L = (8x + 5 - 3x) W = (4x - 1)
first I would simplify L collecting the terms of x
L = (5x + 5)
plug in to L and W
Perimeter = 2 (( 5x + 5 ) + ( 4x - 1 )) L = (8x + 5 - 3x) W = (4x - 1)
Perimeter = 2 ( 5x + 4x + 5 -1 ) collect like terms
Perimeter = 2 ( 9x +4) 2 times the 9 and 4
Perimeter = 18x + 8 SOLVE for x
Perimeter - 8 = 18x + 8 -8
Perimeter - 8 = 18x
(Perimeter - 8) / 18 = 18x / 18
(Perimeter - 8) / 18 = x
remember the Perimeter equals 88
(88 - 8) / 18 = x units
4.444444444 units = x
This seems like an odd number so let's it
Perimeter = 2 (( 5x + 5 ) + ( 4x - 1 ))
Perimeter = 2 (( 5(4.444) + 5 ) + ( 4(4.444) - 1 )) = 87.9952
close enough with the rounding off error
=
Answer:
4 students
Step-by-step explanation:
As shown in the diagram, let U=[The total number of students questioned]
![\implies n(U) = 10](https://tex.z-dn.net/?f=%20%5Cimplies%20n%28U%29%20%3D%2010)
A=[Those who liked peanut butter ]
![\implies n(A) =18](https://tex.z-dn.net/?f=%5Cimplies%20n%28A%29%20%3D18)
B=[Those who liked jam ]
![\implies n(B) = 10](https://tex.z-dn.net/?f=%20%5Cimplies%20n%28B%29%20%3D%2010)
x = those who like both peanut butter and jam.
Also 6 liked neither peanut butter nor jam.
From the diagram we can write the mathematical equation as follow and solve for x
![30 = 18 - x + x + 10 - x + 6](https://tex.z-dn.net/?f=30%20%3D%2018%20-%20x%20%2B%20x%20%2B%2010%20-%20x%20%2B%206%20)
![\implies 30 = 34- x](https://tex.z-dn.net/?f=%20%5Cimplies%2030%20%3D%2034-%20x%20)
We add x and subtract 30 to both sides.
![\implies 30 - 30 + x = 34- x + x - 30](https://tex.z-dn.net/?f=%20%5Cimplies%2030%20-%2030%20%2B%20x%20%3D%2034-%20x%20%2B%20x%20-%2030)
![\implies x = 4](https://tex.z-dn.net/?f=%5Cimplies%20x%20%3D%204)
Therefore 4 students like both peanut butter and jam.