So we can write is also as:
k=2y+x
y=(k-x)/2
x=k-2y
k= 2[(k-x)/2] + (k-2y)
Answer:
Brady did not distribute the -1 correctly.
Step-by-step explanation:
The given expresion is
![2.6 - (1.3 - 4.5)](https://tex.z-dn.net/?f=2.6%20-%20%281.3%20-%204.5%29)
Recall that for all real numbers a, b, and c, the distributive property says that:
![a(b + c) = ab + ac](https://tex.z-dn.net/?f=a%28b%20%2B%20c%29%20%3D%20ab%20%2B%20ac)
We apply this property to get:
![2.6 - (1 .3 - 4.5) = 2.6 - 1.3 + 4.5](https://tex.z-dn.net/?f=2.6%20-%20%281%20.3%20-%204.5%29%20%3D%202.6%20-%201.3%20%2B%204.5)
![2.6 - (1 .3 - 4.5) = 1.3 + 4.5](https://tex.z-dn.net/?f=2.6%20-%20%281%20.3%20-%204.5%29%20%3D%201.3%20%2B%204.5)
But Brady said it is equivalent to 1.3-4.5
Hence Brady did not apply the distributive property correctly.
Answer:
28
Step-by-step explanation:
if you look at the figure, pretend the empty space isn't there, so it would be 10 x 4 which is 40
then you find the area od the smaller rectangle inside the larger figure which is 6 x 2 = 12
subtract 12 from 40 equals 28
hope that helps:)
Ok so train can travel 744 miles in 3 hours.Let's make equation.
744 miles- 3 hours
X miles - 1 hour
X=744:3=248 miles - per hour