A runner, training for a competition, ran on a track every day for 10 weeks. The first week he ran 8 kilometers each day of the week. The second week he increased his daily run by one lap (400 meters). The third week he increased again his daily run by one lap and so on. What is total distance he ran in 10 weeks?
1 answer:
Answer:
Total = 686000 meters for 10 weeks 7 days a week.
Step-by-step explanation:
Let's solve this by doing the increase on just 1 training day per week. Then we can find the grand total for 7 days a week by multiplying by 7
a = 8000
n = 10
d = 400
Sum = (a + L)*n/2
L = a + (n - 1)*d L = 8000 + (10 - 1)*400 L = 8000 + 9*400 L = 8000 + 3600 L = 11600 meters Sum = (8000 + 11600)*10/2
Sum = 19600 * 10/2
Sum = 98000 meters.
This total represents 1 training day a week.
The total amount is 7 times this figure.
Total = 7 * 98000 = 686 000 meters.
You might be interested in
y=-1/2 2 (x+4)(x+-4+
-1/2*2 = -1
y=-1(x+4)(x-4)
solving for x
x - -4 and x =4
-4 to 4 = 8 feet
width = 8 feet
The answer is b please be thankful
Answer:
B) m∠ A'B'C' = m∠ABC
Step-by-step explanation:
A rotation does not change angle measure or side length. It preserves congruence.
This means that the image angle, A'B'C', will be congruent to the pre-image angle, ABC.
Answer:The reason there is no commutative property for subtraction or division is because order matters when performing these operations.
Step-by-step explanation:
17,604 points/36 shirts=<span>489 points per shirt40,098 points </span>
