Average speed of Alishia is 19 kilometers per hour
Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance. Speed is how fast something is going at a particular moment. Average speed measures the average rate of speed over the extent of a trip
Given :
Distance = 45.3 km
Time taken = 143 minutes = 143/60 =2.384 hours
∴ Average speed = 45.3/2.384 = 19 kilometers per hour
Thus the average speed of Alishia is 19 kilometers per hour.
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There are 144 square inches, 12 x 12 = 144
Answer:
x = 10
y = 11
Step-by-step explanation:
angle C is a right angle because AC = BC, so it is 90 degrees, meaning that 9x = 90. 90 divided by 9 is 10, so <em>x = 10</em>.
angle A = angle B, because AC = BC, so A and B are congruent. angle A measures 72 degrees, so angle B measures (8y-16) = 72.
(8y-16) = 72
+16 +16
8y = 88
divide by 8 on both sides
<em>y = 11</em>
