Answer:
Step-by-step explanation:
To find the 41st term to 47th term, we must find the equation of how to get those terms.
The equation for arithmetic terms is , where d is the difference between two side-by-side terms.
By using this equation format, we get the equation
That means the terms are
Now to find the sum, we just add all the terms up simply
Sum = 82 + 84 +86 + 88 + 90 + 92 +94 = 616
Hope that helps!
5 and 1 half this is the answer my son thought of.
Answer:
Step-by-step explanation:
5x-7=24
<span>Let x = the miles Jeanie ran
y = the miles Jeanie biked
T = 2 hours total time for the duathlon
v1 = 8.5 mph Jeanie's running speed and
v2 = 16 mph Jeanie's biking speed
But T = Jean's time she ran t1 + time she biked t2 I. e t1 + t2 = 2
So we have average speed v2 when she biked = distance (y) / time (t2)
Distance y = v2 * t2 = 16 * t2 and distance when she ran x = 8.5 * t1
Since she covered 27 miles while running and biking we have
x + y = 27
8.5t1 + 16t2 =27 ------(1)
t1 + t2 = 2 --------------(2)
The simultaneous equation gives us
t1 = 2/3 and t2 which is time she biked = 4/3
So 4/3 = 1 1/3. Which is 1 hour 20 minutes</span>
2/5 (rise/run) is the distance. You move up by 2 and 5 to the right