home *** CD-ROM | disk | FTP | other *** search
- 185
- àï6.1èU. S. Measurements of Length.
-
- äèPlease convert the following U. S. Measurements of
- êê Length.
-
- âêêïConvert 30 in. to ______ ft.
-
- #ê 12 in.ê30 in.ë┌─¥ë12 ∙ xè=è30
- #ê ──────è=è──────ë│
- #êï1 ft.ê x ft.ë│êëxè=è30/12
- #êêêêè │êëxè=è2 1/2 ft.
- #êï12 ∙ xè=è1 ∙ 30è─┘
- éSThe U. S. Measurements of length are inch, foot, yard, and
- mile.ïThe equivalencies between ç units of length are as follows:
- êêè12 inches (in.)è=è1 foot (ft.)
- êêêë 3 ft.è=è1 yard (yd.)
- êêêë36 in.è=è1 yd.
- êêêè5280 ft.è=è1 mile (mi.)
- In order to convert 30 in. to feet, you should set up a proportion
- involving the equivalence, "12 in.è=ï1 ft."
-
- êêêë12 in.ê30 in.
- #êêêë──────è=è─────
- êêêê1 ft.êx ft.
- Note that the equivalence forms a Rate on the left side of the
- Proportion. Next, you should drop the units and solve the Proportion.
- êêêê 12ê30
- #êêêê ──è=è──
- êêêêï1ê x
-
- êêêë12 ∙ xè=è1 ∙ 30
- êêêë12 ∙ xè=è30
- êêêêèxè=è30/12
- êêêêèxè=è2.5èorï2 1/2
- Finally, the unit for "x" is put back in the answer.ïxè=è2.5 feet
- 1
- êêê Convert 8 ft. to _____ in.
-
-
- ë A)ï76 in.ê B)ï96 in.ê C)ï84 in.ê D)ïå
-
- üêêë12 in.êïx in.
- #êêêè ──────è =è ─────
- êêêë1 ft.êè8 ft.
-
- êêêè 12 ∙ 8è =è 1 ∙ x
-
- êêêê 96è =è x
- êêêêx is equal to 96 in.
- Ç B
- 2
- êêê Convert 84 in. to _____ ft.
-
-
- ë A)ï10 ft.ê B)ï9 ft.êïC)ï7 ft.êïD)ïå
-
- üêêë12 in.êï84 in.
- #êêêè ──────è =è ──────
- êêêë1 ft.êèx ft.
-
- êêêè 12 ∙ xè =è 1 ∙ 84
- êêêè 12 ∙ xè =è 84
- êêêêïxè =è 84/12
- êêêêïxè =è 7 ft.
- Ç C
- 3êêêè1
- #êêê Convertï6 ─ yd.ïto _____ ft.
- êêêêë2
- êë 1êêêêê1
- #ë A)ï19 ─ ft.ë B)ï17 ft.ê C)ï18 ─ ft.ë D)ïå
- êë 2êêêêê2
- üêêë 3 ft.êè x ft.
- #êêêè ──────è =è ────────
- êêêë1 yd.êï6 1/2 yd.
-
- êêêï3 ∙ 13/2è =è 1 ∙ x
- êêêë 39/2è =è x
-
- êêê19 1/2 ft.è =è x
- Ç A
- 4
- êêê Convertï3 yd.ïto _____ in.
-
-
- ë A)ï124 in.êB)ï108 in.êC)ï96 in.ê D)ïå
-
- üêêë 1 yd.êè3 yd.
- #êêêè ──────è =è ──────
- êêêè 36 in.êèx in.
-
- êêêë1 ∙ xè =è 36 ∙ 3
- êêêêïxè =è 108
-
- êêêêïxè =è 108 in.
- Ç B
- 5
- êêê Convertï80 in.ïto _____ yd.
-
-
- ë A)ï2 1/2 yd.ëB)ï3 yd.êïC)ï2 2/9 yd.ëD)ïå
-
- üêêë36 in.êï80 in.
- #êêêè ──────è =è ──────
- êêêë1 yd.êèx yd.
-
- êêêè 36 ∙ xè =è 1 ∙ 80
- êêêè 36 ∙ xè =è 80
- êêêêïxè =è 80/36
- êêêêïxè =è 2 2/9 yd.
- Ç C
- 6êêêè3
- #êêê Convertï1 ─ mi.ïto _____ ft.
- êêêêë4
-
- ë A)ï9240 ft.ë B)ï8670 ft.ë C)ï6485 ft.ë D)ïå
-
- üêêè5280 ft.êèx ft.
- #êêêï────────è =è ────────
- êêêè 1 mi.êè1 3/4 mi.
- êêêêêêè .
- êêê5280 ∙ 7/4è =è 1 ∙ x
- êêêï36960∙/4è =è x
- êêêë 9240è =è x
- êêêï9240 ft.è =è x
- Ç A
- 7êêêè3
- #êêê Convertï2 ─ ft.ïto _____ in.
- êêêêë4
-
- ë A)ï38 in.ê B)ï36 in.ê C)ï33 in.ê D)ïå
-
- üêêë 1 ft.êï2 3/4 ft.
- #êêêè ──────è =è ─────────
- êêêè 12 in.êëx in.
-
- êêêë1 ∙ xè =è 12 ∙ 11/4
- êêêêïxè =è 132/4
- êêêêïxè =è 33
- êêêêïxè =è 33 in.
- Ç C
- 8êêêè2
- #êêê Convertï7 ─ yd.ïto _____ ft.
- êêêêë3
-
- ë A)ï25 ft.ê B)ï23 ft.ê C)ï24 ft.ê D)ïå
-
- üêêë 1 yd.êï7 2/3 yd.
- #êêêè ──────è =è ─────────
- êêêë3 ft.êëx ft.
-
- êêêë1 ∙ xè =è 3 ∙ 23/3
- êêêêïxè =è 69/3
- êêêêïxè =è 23
- êêêêïxè =è 23 ft.
- Ç B
- 9êëAddë4 yd. 2 ft.
- êêêë+ï2 yd. 2 ft.
- #êêêê ───────────
-
- ë A)ï8 yd. 2 ft.èB)ï7 yd. 1 ft.èC)ï6 yd. 4 ft.èD)ïå
-
- ü
- êêêêï4 yd. 2 ft.
- êêêë +ï2 yd. 2 ft.
- #êêêêï───────────
- êêêêï6 yd. 4 ft.è=è7 yd. 1 ft.
-
- Ç B
- 10êè Addë12 ft. 8 in.
- êêêë+è3 ft. 9 in.
- #êêêê ───────────
-
- ëA)ï16ft. 5 in.èB)ï17 ft. 1 in.èC)ï15 ft. 11 in.èD)ïå
-
- ü
- êêêê 12 ft. 8 in.
- êêêë +ï3 ft. 9 in.
- #êêêêï───────────
- êêêê 15 ft. 17 in.è=è16 ft. 5 in.
-
- Ç A
-
-
-
-
-