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Jack loaned Bob $1,500 at an annual interest rate of 7%. After one year, how much will
Bob owe Jack?
(a) $105
(b) $1,500
(c) $1,605
(d) $1,507
Give this one a try later!
C. First find interest then add to the loan. $1,500 × 0.07 = 106, $106
+ $1,500 = 1,605
Your car uses gasoline at a rate of 21 miles per gallon. If gasoline costs $2.82 per
gallon and you drive for 7 hours at a speed of 48 miles per hour, how much will you
pay for gasoline for the trip?
, (a) $38.18
(b) $45.12
(c) $47.73
(d) $59.27
Give this one a try later!
B. First determine the miles traveled d = st (7hr × 48mph = 336
miles), then divide by the rate per gallon, 21. So now you know you
need 16 gallons at $2.82 per gallon to pay for the trip. 16 × $2.82 =
$45.12
Alice leaves her house, driving east at 45 miles per hour (mph). Thirty minutes later her
husband Dave notices she forgot her cell phone and sets off after her. How fast must
Dave travel in order to catch up with Alice 3 hours after he leaves?
(a) 49 mph
(b) 50.5 mph
(c) 52.5 mph
(d) 54 mph
Give this one a try later!
C. distance = speed × time. First find how far Alice had traveled 3½
hours at 45 mph, or 157.5 mph. Dave has three hours to cover this
distance. Now find his speed. 157.5 mi ÷ 3 hr. = 52.5 mph
A security guard walks the equivalent of six city blocks when he makes a circuit
around the building. If he walks at a pace of eight city blocks every 30 minutes, how
long will it take him to complete a circuit around the building, assuming he doesn't run
into any thieves?
(a) 20.00 minutes
(b) 3.75 minutes
Jack loaned Bob $1,500 at an annual interest rate of 7%. After one year, how much will
Bob owe Jack?
(a) $105
(b) $1,500
(c) $1,605
(d) $1,507
Give this one a try later!
C. First find interest then add to the loan. $1,500 × 0.07 = 106, $106
+ $1,500 = 1,605
Your car uses gasoline at a rate of 21 miles per gallon. If gasoline costs $2.82 per
gallon and you drive for 7 hours at a speed of 48 miles per hour, how much will you
pay for gasoline for the trip?
, (a) $38.18
(b) $45.12
(c) $47.73
(d) $59.27
Give this one a try later!
B. First determine the miles traveled d = st (7hr × 48mph = 336
miles), then divide by the rate per gallon, 21. So now you know you
need 16 gallons at $2.82 per gallon to pay for the trip. 16 × $2.82 =
$45.12
Alice leaves her house, driving east at 45 miles per hour (mph). Thirty minutes later her
husband Dave notices she forgot her cell phone and sets off after her. How fast must
Dave travel in order to catch up with Alice 3 hours after he leaves?
(a) 49 mph
(b) 50.5 mph
(c) 52.5 mph
(d) 54 mph
Give this one a try later!
C. distance = speed × time. First find how far Alice had traveled 3½
hours at 45 mph, or 157.5 mph. Dave has three hours to cover this
distance. Now find his speed. 157.5 mi ÷ 3 hr. = 52.5 mph
A security guard walks the equivalent of six city blocks when he makes a circuit
around the building. If he walks at a pace of eight city blocks every 30 minutes, how
long will it take him to complete a circuit around the building, assuming he doesn't run
into any thieves?
(a) 20.00 minutes
(b) 3.75 minutes
