Answer:
Step-by-step explanation:
1. Given, u = 20 , x = 4 , y = 7 , z = 10
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2. 
Multiplying or dividing a positive integer by any negative integer gives a negative integer
= - 8
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Hope I helped!
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Answer:
14.4km
Step-by-step explanation:
<h2>Speed = distance / time </h2>
- speed = 4.8 km/h
- time = 3 hrs
- distance = ?
Distance = speed * time
Distance = 4.8 * 3 = 14.4km
A1=-15
a2=a1+d→-4=-15+d→d=11
Length of bottom is four width is four height is also two
Top has a length of 2 height of three and a width of four
Mean=total/the number of values =>total=mean*the number of values
the total of the first set of 8 numbers is : total=8*8=64
the total of the second set of 12 numbers is: 12m
the total of the 20 numbers is: 64+12m
the mean of the 20 number is: (64+12m)/20=5
solve for m: 64+12m=100
12m=36
m=3
