Answer:
700 feet
Step-by-step explanation:
you just add the two 50 wich makes that 100 then add 100 to 600
Answer:
x(6 + 8x²) or 6x + 8x³.
Step-by-step explanation:
"The square of x" can be represented by x² and 8 times that would be 8 * x² or 8x². The sum of 6 and 8x² can be represented by 6 + x² and the product of x and 6 + x² can be represented by x * (6 + 8x²) or x(6 + 8x²) which simplifies to 6x + 8x³.
Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours. Returning, this person drives at (r+20) mph and gets home in 8 hours. We don't know the distance yet, but can solve for the initial speed, r, by setting
d = 12r = (r+20)(8). Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning. Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
Always do brackets first
a) -40/10 = -4
b) 36/4 -2 = 7
c) -2 x 7 = -14
Answer:
0
Step-by-step explanation:
-6(n-8) = 4(12-5n)+14n
-6(n-8)=-6n+48 = 4(12-5n)+14n= 48-20n+14n
then 48-20n+14n<em> = 48-6n</em>
so you have
-6n+48 = <em>48-6n</em>
-6n+6n= n
n+48=48
n-48=48-48
n=0
