Solve them all? Or are these options
Answer:
the answer is 1
Step-by-step explanation:
(3)(1)(-1)-4+4(-2)(-1)
3(-1)-4+4(-2)(-1)
-3-4+4(-2)(-1)
-3-4-8(-1)
-3-4+8
-7+8
1
(8/15)*(-3/10)
multiply numerators and denominators: -24/150
simplify: -4/25
the answer is A.
Answer:
= 45 miles per hour
Step-by-step explanation:
First, we want a unit rate where 1 is in the denominator.
So we divide,
180 miles/ 4 hours both ÷ by 4
= 45 miles/ 1 hour
= 45 miles/ hour
= 45 miles per hour
The first thing to do with these problems is to convert them into y=mx+b form; this will literally show you the answer to slope and y intercept since m=slope and b=y intercept.
To convert, isolate the y and the rest should fall into place. Subtract 2x from 4y and the other side of the equation to get the equation 4y= -2x+9 (put the x first because of mx+b). Then Divide the 4 from y and do the same to the other side to get y= -1/2x+9/4. M= -1/2 so that is the slope. B=9/4 so that is the y intercept
