Make the conversion indicated ineach of the following:
(a) the men's world record long jump,29 ft 4 1/4 in., to meters
(b) the greatest depth of the ocean, about 6.5 mi, to kilometers
(c) the area of the state of oregon, 96,981 mi2, to square kilometers
(d) the volume of 1 gill (exactly 4 oz) to mililiters
(e) the esimated volume of the oceans, 330,000,000 mi3, to cubic kilometers.
(f) the mass of a 3525-ib car to kilograms
(g) the mass of a 2.3-oz egg to grams

a. 8.94715 meters

b. 10.460736 km

c. 251180.79 km²

d. 118.294118 milliliters

e. 1375440000 km³

f.  1598.9131043 kg

g.  65.203903130 grams

Explanation:

(a) The men's world record long jump 29 ft 4 1/4 in to meters

29 ft 17/4 inches

1 ft = 0.3048 meters

29 ft = ?

cross multiply

29 × 0.3048

8.8392 meters

1 inch = 0.0254 meters

4.25 inch = ?

0.10795 meters

8.8392 meters + 0.10795 meters = 8.94715 meters

(b) the greatest depth of the ocean, about 6.5 mi, to kilometers

1 mile = 1.609344 km

6.5 miles = ?

6.5 × 1.609344

= 10.460736 km

(c) the area of the state of Oregon, 96,981 mi2, to square kilometers  h

1 mile² = 2.59 km²

96,981 = ?

96,981 × 2.59

251180.79 km²

(d) the volume of 1 gill (exactly 4 oz) to milliliters

1 gill = 118.294118 milliliters

118.294118 milliliters

(e) the esimated volume of the oceans, 330,000,000 mi3, to cubic kilometers.

1 mile³ = 4.168 km³.

330,000,000 mile³ = ?

330,000,000 × 4.168 =  1375440000 km³

(f) the mass of a 3525-Ib car to kilograms

1 Ib = 0.45359237  kg

3525 Ib  = ?

3525 × 0.45359237 = 1598.9131043 kg

(g) the mass of a 2.3-oz egg to grams

1 oz = 28.3495231 grams

2.3 oz = ?

2.3 × 28.3495231  = 65.203903130 grams

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer