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3 years ago

One grain of this sand approximately weighs 7 x 10^-5g.

Mathematics

2 answers:

Mkey [24]3 years ago

8 0

6.3 x 106 ÷ 7 x 10-5 = 0.9 x 1011 or 9 x 1010

oee [108]3 years ago

4 0

Answer: i belive it is 90 billion grains of sand

Step-by-step explanation:

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Solve the system of equations by substitution.

german

Answer:A

Step-by-step explanation: Hope this helped. Let me know if it did.

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2 years ago

How do you solve 7a+10=2a

sammy [17]

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3 years ago

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Which of the following phrases are inequalities?

salantis [7]

Answer:

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2 years ago

assume that the number of production defects is 28 and that 14 of these are classified as major defects, 8 are classified as des

Arlecino [84]

Answer: 5

Step-by-step explanation:

Let A denotes the number of major defects and B denotes the number of design defect.

By considering the given information, we have

$U=28\ ;\ n(A)=14\ ;\ n(B)=8\ \ ;\ n(A^c\cap B^c)=1$

Now, the number of major defects or design defects:

$n(A\cup B)=U-n(A^c\cap B^c)=28-11=17$

Also,

$n(A\cap B)=n(A)+n(B)-n(A\cup B)\\\\\Rightarrow\ n(A\cap B)=14+8-17=5$

Hence, the number of design defects were major=5

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4 years ago

Ivan earned $343.75 for working 25 hours last week. How much does Ivan get paid per hour?

soldier1979 [14.2K]

Answer:

$13.75

Step-by-step explanation:

Ivan earns $343.75 working for 25hours

The amount that Ivan gets if he works for 1 hour can be calculated as follows

= 343.75/25

= 13.75

Hence the amount paid for one hour is $13.75

8 0

3 years ago