In a race, Mr. Cook ran a certain distance at 13 km/h and then cycled an additional distance at 34 km/h. He completed the race in 2 h and 30 min and travelled a total
distance of 60 km.
speed
distance
distance
time =
speed
running
13 km/h
r
т
13
cycling
34 km/h
с
с
34
total
60 km
2.50h
Numeric Response
5. How many kilometres (r) did Mr. Cook run?

idc

step-by-step explanation:

idk

x + 4/7

step-by-step explanation:

use cymath

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

happy to

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