My kid won't stop telling about how hard his math is. Its getting annoying can you please answer this question for me?

box on top = 15

box on the bottom = 16

The fractions are not the same

==================================================

Explanation:

We multiply the 3 by 5 to get 3*15 = 15

We also multiply the 8 by 2 to get 8*2 = 16

So this is what you could have as your steps

The fractions 3/8 and 15/16 are not the same. We can use a calculator to get these decimal values

3/8 = 0.3750

15/16 = 0.9375

We see that 15/16 is much bigger than 3/8.

----------------

Here's another way to show they aren't the same. For now assume they are equal. We'll show a contradiction happens later.

3/8 = 15/16

3*16 = 8*15

48 = 120

We end up with a contradiction since we get differing values on either side. The false equation at the end means the original equation is false too.

step-by-step explanation:

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

related questions