Train fare a family of six takes a one-way trip on a train. the cost is $60 per adult
and $45 per child. which of the following key stroke sequences is better for finding
the total cost? explain your reasoning.
2 x 60
4 45 =
a.
b. 2060 + 4 450

answer:

the answer is b

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet