The ratio of joe’s stamp collection to tom’s stamp collection is 6: 2. if joe has 72 stamps how many does tom have?

24 stamps

Step-by-step explanation:

Joe has 72 stamps which is 6 parts of the combined collection

divide Joe's collection by 6 to find one part of the collection

72 ÷ 6 = 12 ← 1 part of the combined collection

2 parts = 2 × 12 = 24 stamps ← number of Tom's stamps

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).