Let the numbers be n, n+2, n+4
Sum equals too= 13+2(n+4), which is 2n+21
a) Equation--> n+n+2+n+4= 2n+21
b) Solution--> 3n+6= 2n+21
=> n= 15
c) Second number--> 17 (15+2)
Third number--> 19 (15+4)
d) 15+15+2+15+4=30+21
=> 51= 51
So, the equation is true.
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Slot method
20 options
3 slots
First slot: 20 options
Second slot: 19 options (one used up for 1st slot)
Third slot: 18 (one less than last)
Multiply them
20 times 19 times 18=6840
Answer is 6840 ways
Answer:
The measure of angle JKP is 
Step-by-step explanation:
step 1
we know that
The measure of the arc is equal to the measure of its central angle
so
and
step 2
Find the measure of the angle JKP
we know that
The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.
substitute the values
Convert 2 1/2 to improper fraction
= 5/2
5/2 * 1/3 = (5*1) / (2*3) = 5/6
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➷ Work out the time for Cardiff to Swansea:
time = distance/speed
Substitute in the values:
time = 69/60
Solve:
time = 1.15 hours = 69 minutes
Add together the total time and distance:
72 + 69 = 141
48 + 69 = 117
speed = distance/time
speed = 141/1.95
speed = 72.3 km/h
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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