Answer:
40mph
Step-by-step explanation:
Using D = rt, the current variables we have are
D = 20 miles
t = 30 minutes
Since the goal is rate, we alter the equation to r = D/t.
In addition, we have to convert minutes into hours so we can
r = (20 / 30)*2/2
r = (40/60)
60 minutes is converted into an hour so the rate <em>r</em> is 40 miles per hour.
r = 40/1
Correct answer is
A) -4(m+y)
6% of 30....turn percent to a decimal..." of " means multiply
0.06(30) = 1.8
Answer:
156
Step-by-step explanation:
s8 = n/2 [2t + (n-1)(d)]
= 8/2 [2(2) + (8-1)(5)]
= 4 [4 + (7)(5)]
= 4 (4 + 35)
= 4 (39)
= 156
Answer: 
Step-by-step explanation:
<em>Thus, the expressions will be used: (5x² + 15x - 20) and (x + 4).</em>
<em>Let's check:</em>
