Lauren simplified the expression mc015-1.jpg as shown. mc015-2.jpg which statement explains lauren’s error? she should have subtracted the exponents instead of adding them. she should have multiplied the exponents instead of adding them. she should have found –2, not mc015-3.jpg, as the exponent when she added. she should have written mc015-4.jpg as mc015-5.jpg. he simplified form of the expression?

lauren should have multiplied the exponents instead of adding them.

step-by-step explanation:

we have been given the expression

now, lauren did error in the first step. let us see what should have done by lauren to get the correct solution.

we have an exponent property

hence, in the first step we have to multiply the exponents

therefore, lauren should have multiplied the exponents instead of adding them.

i dont know it

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

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