Home › CAASPP Mathematics › Mathematics › Math Models › The difference of a number and six is 13. Find t…
The difference of a number and six is 13. Find the number.
AThe number is 7
BThe number is 19
CThe number is 13
DThe number is 78
Answer & Solution
Correct answer: B. The number is 19
1. Let n equal the unknown number.
2. The phrase difference of a number and six translates to n minus 6.
3. Set that equal to 13 and solve: n minus 6 equals 13, so n equals 19.
4. Check: the difference of 19 and 6 is 13, which matches.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 3 "Math Models", section 3.1 Use a Problem-Solving Strategy_
Related questions
Remy has $14,000 to split between a fund paying 4% and a fund paying 7%. To earn 6.1% on tLeah sold 115 museum tickets for a total of $1,163. Adult tickets cost $12 and student ticSheila's salary fell from $42,000 last year to $37,800 this year because of furlough days.The average cost of a car in 2014 was $28,500, which was $1,500 less than 6 times the averA triangle has angles of 31 degrees and 128 degrees at two of its corners. How large is thMichaela has $2.05 in dimes and nickels, with seven more dimes than nickels. How many dimeAreli invested a principal of $950 at a 3% interest rate. How much simple interest did sheThe standard bus fare in Chicago rose from $1.50 in 1995 to $2.25 in 2008. What was the pe