Question

Neil uses 47 cent stamps and 6 cent stamps to mail a gift card to a friend’s if the postage is $1.89 how many of each stamp did neil use ?

Answer 1

Explanation:

Given that the total number of stamps Neil used is 11, we can substitute this value into the second equation:

�

+

�

=

11

x+y=11

Solve for

�

y:

�

=

11

−

�

y=11−x

Now substitute

�

y into the first equation:

47

�

+

6

(

11

−

�

)

=

189

47x+6(11−x)=189

Simplify the equation:

47

�

+

66

−

6

�

=

189

47x+66−6x=189

Combine like terms:

41

�

+

66

=

189

41x+66=189

Subtract 66 from both sides:

41

�

=

123

41x=123

Divide both sides by 41:

�

=

3

x=3

Now that we have

�

=

3

x=3, substitute this value back into

�

=

11

−

�

y=11−x:

�

=

11

−

3

y=11−3

�

=

8

y=8

So, Neil used 3 of the 47 cent stamps and 8 of the 6 cent stamps to mail the gift card.