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4 years ago

1/8 plus c equals 4/5

Mathematics

1 answer:

Lena [83]4 years ago

8 0

So we just subtract the fractions;
4/5-1/8 = 27/40

Answer: C= 27/40

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The Sahara Desert has an area of approximately 9,400,400 km2. While estimates of its average depth vary, they center around 150

dolphi86 [110]

Answer:

$1.128048 \times 10^{25}$ grains of sand are in the Sahara Desert

Step-by-step explanation:

Given :

The Sahara Desert has an area of approximately 9,400,400 sq.km.

Depth = 150 m

To Find :Approximately how many grains of sand are in the Sahara Desert?

Solution:

Area of Sahara desert = 9,400,400 sq.km.

$1 km^2 = 1000000 m^2$

So, $9,400,400 km^2 = 1000000 \times 9400400 m^2$

$9,400,400 km^2 =9.4004 \times 10^{12}m^2$

Volume of sand = $Area \times depth$

= $1.41006\times 10^{15} m^3$

$1 m ^3 = 1000000 cm^3$

So, $1.41006\times 10^{15} m^3 = 1.41006\times 10^{15} \times 1000000cm^3$

$1.41006\times 10^{15} m^3 =1.41006 \times 10^{21}cm^3$

1 cubic cm holds grains of sand = 8000

$1.41006 \times 10^{21}cm^3$ holds grains of sand = $1.41006 \times 10^{21} \times 8000$

= $1.128048 \times 10^{25}$

Hence $1.128048 \times 10^{25}$ grains of sand are in the Sahara Desert

7 0

3 years ago

9 students can make a poster in 10 hours. How many students should join them so that they all together can make this poster in 6

AVprozaik [17]

Answering your question on "9 students can make a poster in 10 hours. How many students should join them so that they all together can make this poster in 6 hours" its 13 students

4 0

3 years ago

Read 2 more answers

Solve for x. Show your work.<br><br> - x < -12

Andrej [43]

All you have to do is move -x to the right side and -12 to the left side to remove the negative sign.
-x<-12 (Original)
0<-12+x (Add x to both sides)
12<x (Add 12 to both sides)
The answer is 12<x, or you can write it as x>12.

8 0

4 years ago

A bag contains 7 red marbles, 11 blue marbles, and 7 yellow marbles.

SOVA2 [1]

Answer:

the total of marbles = 7 red + 11 blue + 7 Yellow

= 25 marbles

P ( b n r) = 11/25 + 7/24

=0.732

Step-by-step explanation:

1. find the total marbles

2. find the probability of each without replacement means the demoinator will reduce

3.add the two probability

8 0

3 years ago

Write the following numbers in words:

GaryK [48]

A. fourty eight thousand nine hundred seventy three

b. one hundred fifty three thousand eight hundred sixty two

c. nine hundred three thousand thirty six

d. four hundred fourty four thousand three hundred thirty three

e. sixteen

3 0

2 years ago