There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater. the south china sea contains approximately 9.88×1018 liters of seawater. how many kilograms of dissolved salt are in the south china sea? enter your answer, in scientific notation, in the boxes.

3.458×10¹⁷ kg

Step-by-step explanation:

(3.5×10⁻² kg/L) × (9.88×10¹⁸ L) = (3.5×9.88) × 10⁽⁻²⁺¹⁸⁾ kg

... = 34.58×10¹⁶ kg

... = 3.458×10¹⁷ kg

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Comment on significant digits

It would be appropriate to round the answer to 2 significant digits, matching the number of significant digits in the least-precise factor. Then the answer would be 3.5×10¹⁷ kg.

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Comment on scientific notation problems

Your scientific calculator can show results in scientific notation.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

one that is bigger than 3 1/2