In a school 30% of the teachers are math teachers. if there are 15 math teachers how many teachers are in the school?

The total teachers in the school are 50.

Step-by-step explanation:

Given:

In a school math teachers are 30%.

Now, to get the total teachers in school if there are 15 math teachers.

Percentage of math teachers = 30%.

Number of math teachers = 15.

Let the total number of teachers be .

So, according to question:

⇒

⇒

⇒

Dividing both sides by 0.30 we get:

⇒

Therefore, the total teachers in the school are 50.

i got 86 for this

hope this !

if you need an explanation just ask

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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