Answer:
12.5 miles per hour
Step-by-step explanation:
This is a fraction equal to
25 miles ÷ 2 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 2
<u>25 miles </u>÷ 2
2 hours ÷ 2
<u>12.5 miles</u>
1 hour
= 12.5 miles per hour
<span> joint variation
======================
</span>
Step-by-step explanation:
Since PT = 2PM and AR = 2AD,
The midsegment MD must be the average of PA and TR:
Therefore we have
2(20x + 4) = 10 + (34x + 16)
=> 40x + 8 = 34x + 26
=> 6x = 18
=> x = 3
Hence length of MD
= 40(3) + 8 = 128.
30-[(9x2)-(3x4)]
30-[18-(3x4)]
30-(18-12)
30-6
24
C is 0, since only multiplied by 0 will get 0, and the question defined that a and b not 0, so only c is 0
