Question

Marty and Stewart are stuffing envelopes with index cards. They are putting index cards in each envelope. When they are finished, Marty has 15 stuffed envelopes and 4 extra index cards, and Stewart has 12 stuffed envelopes and 6 extra index cards. Write an expression in standard form that represents the number of index cards the boys started with. Explain what your expression means. (Please help)

Answer 1

Answer: 27x+10

Explanation:

Let both the boys are putting 'x' index cards in each envelope.

then, The number of index cards Marty put=
`15x+4`

And The number of index cards Stewart put=
`12x+6`

Now, the total number of index cards they have started with =
`15x+4+12x+6`

Hence, the total number of index cards they have started with =27x+10