Question

a store sells candles for $3 each and journals for $4 each. could you buy 3 candles and 8 journals for exactly $35? we can substitute in the equation to see if the cost of 3 candles and 8 journals is exactly $35. start by substituting 3 candles for c and 8 journals for j. cost of candles + cost of journals = $35 3c + 4j = 35 3·□ + 4·□ = 35

Explanation:

Step1: Substitute values into variables

$3 \cdot 3 + 4 \cdot 8 \stackrel{?}{=} 35$

Step2: Calculate cost of candles

$3 \times 3 = 9$

Step3: Calculate cost of journals

$4 \times 8 = 32$

Step4: Sum the two costs

$9 + 32 = 41$

Step5: Compare to $35$

$41
eq 35$

Answer:

No, you cannot buy 3 candles and 8 journals for exactly $35. The total cost would be $41.