A baseball diamond is a square with 90 feet in between each base. The pitcher’s mound is located on
a direct line between home plate and second base and is 60.5 feet from home plate. During a pivotal
play, the pitcher throws the ball to his teammate standing at first base at a speed of 132 feet per
second in an attempt to get a runner out. The runner speeds back to the base in 0.6 second. Is the
runner safe or out? Explain your reasoning. Use the equation for distance, d = rt, where d is distance,
r is speed, and t is time. (Note: A runner is safe if he gets back to the base before the ball arrives. He is
out if the ball is caught at the base before he returns.)

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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