The 1989 population of Mexico was estimated at 87,000,000. The annual growth rate is 2.4%. When will the population reach 100,000,000 (to the nearest year)?

6years

Step-by-step explanation:

In 1988, the population of Mexico was 87,000,000. If the annual growth rate is 2.4% then annual population increase is expressed as;

2.4% of 87,000,000

= 2.4/100×87,000,000

= 2.4×870,000

= 2,088,000populations

In order to know when the population will reach 100,000,000, first we will find the population margin

Populating margin = 100,000,000 - 87,000,000

= 13,000,000

Since the population increases yearly by 2,088,000, this means the population will reach 100,000,000 after (13,000,000/2,088,000) years i.e 6.22years

The population will reach 100,000,000 after 6.22years.

The population will reach 100,000,000 after 6years (to the nearest year)

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