Answer:
3
Step-by-step explanation:
Answer:x=−136
Step-by-step explanation: Step 1: Simplify both sides of the equation.
2+x=
7
8
x−15
2+x=
7
8
x+−15
x+2=
7
8
x−15
Step 2: Subtract 7/8x from both sides.
x+2−
7
8
x=
7
8
x−15−
7
8
x
1
8
x+2=−15
Step 3: Subtract 2 from both sides.
1
8
x+2−2=−15−2
1
8
x=−17
Step 4: Multiply both sides by 8.
8*(
1
8
x)=(8)*(−17)
Answer:
A. (55 x 5) - (40 x 5)
Step-by-step explanation:
You are solving how much miles (further along) would the second car be after 5 hours.
The first car averages 40 miles per hour. 5 hours later, it will have averaged about 200 miles in 5 hours (40 x 5 = 200).
The second car averages 55 miles per hour. 5 hours later, it will have averaged about 275 miles in 5 hours (55 x 5 = 275)
Subtract: 275 - 200 = 75
The second car would have averaged 75 more miles than the first car.
~
Answer:n=-2 or n=4
Step-by-step explanation:
Q is not inversible if det(Q)=0
