At Frosty Freeze, 4 of the last 6 sundaes sold had nuts. Considering this data, how many of the next 9 sundaes sold would you expect to have nuts?

6 sundaes will have nuts

Step-by-step explanation:

Let's make a proportion. Use the following setup.

sundaes with nuts/total sundaes=sundaes with nuts/total sundaes

We know that 4 sundaes had nuts out of a total 6 sundaes. We don't know how many sundaes had nuts out of 9 sundaes. Therefore, we can say that x sundaes had nuts out of a total of 9 sundaes.

4 sundaes with nuts/6 total sundaes=x sundaes with nuts/9 total sundaes

4/6=x/9

We want to find out what x is. In order to do this, we have to get x by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.

x is being divided by 9. The opposite of division is multiplication. Multiply both sides by 9.

9*(4/6)=(x/9)*9

9*4/6=x

9*2/3=x

6=x

Out of the next 9 sundaes sold, it is expected that 6 sundaes will have nuts.

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

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11