Answer:
a). grains
b).
c). years
Step-by-step explanation:
a). Given Sahara desert has an area of approximately = 9400000 km²
= 9400000×(10000000000) cm²
= cm²
Depth of the desert = 150 m
= 15000 cm
Volume of desert = Area × Depth
=
= cm³
Since 1 cm³ holds sand grains = 8000
Therefore, Grains in Sahara Desert =
=
b). Since 1 cm³ = 8000 grains
1 grain = cm³
c). A truck can carry sand = 20.5 m³ Or
= cm³
Now time taken to recreate Sahara Desert = seconds
=
= seconds
= years
= years
Answer:
B.
Step-by-step explanation:
Adding 0 to 6 gives the same value (6).
Zero is called the Identity element of Addition,
-(17/30)n^5+(113/12)n^4-(173/3)n^3+ (1915/12) n^2- ( 5813/30)n +85
there fore term number 7 is .... -146/1=-146
just do 6 times 7 on the second one!
Answer:
22
Step-by-step explanation:
220 x 15 ÷ 150 = 22
or each gallon gives him 10 miles.
for 220 miles he needs 22 gallons