- SLEEP The graph below compares the amount
of sleep a 1-month-old baby got to the -hour
daily requirement recommended by Children’s
Hospital of Orange County, California. For the
week, how far below the baseline was the baby’s
daily average? - CAMPING The four sides of a tent are all the same
trapezoid-shape. (See the illustration below.) How
many square yards of canvas are used to make one of
the sides of the tent? - SEWING A seamstress begins with a trapezoid-
shaped piece of denim to make the back pocket
on a pair of jeans. (See the illustration below.)
How many square inches of denim are used to
make the pocket?
Finished pocket6 in.^3 – 45 in.^1 – 47 in.^1 – 4(^1) –
3 yds 2
(^1) –
2 yds 2
(^1) –
2 yds 3
Hours over
Hours under
Baseline (recommended daily amount of sleep)
1
1
1
(^1) –
2
(^1) –
2
(^1) –
2
Sun Mon Tue Wed Thu Fri Sat
15 12
- AMUSEMENT PARKS At the end of a ride at an
amusement park, a boat splashes into a pool of water.
The time (in seconds) that it takes two pipes to refill
the pool is given by
Simplify the complex faction to find the time.- ALGEBRA Complex fractions, like the one shown
below, are seen in an algebra class when the topic of
slope of a lineis studied. Simplify this complex
fraction and, as is done in algebra, write the answer as
an improper fraction. - Why is an order of operations rule necessary?
- What does it mean to evaluate a formula?
- What is a complex fraction?
- In the complex fraction , the fraction bar
serves as a grouping symbol. Explain why this is so.- Find the sum: 8 + 19 + 124 + 2,097
- Subtract 879 from 1,023.
- Multiply 879 by 23.
- Divide 1,665 by 45.
- List the factors of 24.
- Find the prime factorization of 24.
REVIEW
3
8
1
4
3
8
1
4
WRITING
1
2
1
3
1
4
1
5
1
1
10
1
15
3.7 Order of Operations and Complex Fractions 295