Divide 3.3×104 by 5.5×10^7 .(1 point) Responses 6×10^−5 6 times 10 to the negative 5 power 6×10^−3 6 times 10 to the negative 3 power 6×10^−4 6 times 10 to the negative 4 power 6×10^−6 6 times 10 to the negative 6 power

7 answers

To divide \(3.3 \times 10^4\) by \(5.5 \times 10^7\), follow these steps:

  1. Divide the coefficients: \[ \frac{3.3}{5.5} = 0.6 \]

  2. Subtract the exponents (since you are dividing powers of 10): \[ 10^4 \div 10^7 = 10^{4-7} = 10^{-3} \]

  3. Combine the results: \[ 0.6 \times 10^{-3} \]

  4. Convert \(0.6\) to scientific notation: \[ 0.6 = 6 \times 10^{-1} \] Thus, \[ 0.6 \times 10^{-3} = 6 \times 10^{-1} \times 10^{-3} = 6 \times 10^{-4} \]

So, the final answer is: \[ \boxed{6 \times 10^{-4}} \]

A city lunch program for seniors received a grant of 1.925×106 dollars. Divide that figure by the cost of $2.75 per lunch to find out how many senior lunches the grant can provide. Write the answer in scientific notation.(1 point) Responses 0.7×106 0.7 times 10 superscript 6 baseline 0.7×105 0.7 times 10 superscript 5 baseline 7×106 7 times 10 superscript 6 baseline 7×105 7 times 10 superscript 5 baseline Skip to navigation page 12 of 12

To find out how many senior lunches the grant can provide, we need to divide the total grant amount by the cost per lunch:

\[ \text{Total Grant} = 1.925 \times 10^6 \text{ dollars} \] \[ \text{Cost per Lunch} = 2.75 \text{ dollars} \]

Now, we perform the division:

\[ \frac{1.925 \times 10^6}{2.75} \]

First, divide the coefficients:

\[ \frac{1.925}{2.75} \] Calculating this gives approximately:

\[ \frac{1.925}{2.75} \approx 0.7 \]

Next, we consider the scientific notation for the number of lunches, which also includes the power of 10:

\[ 10^6 \]

Now combining the results, we have:

\[ 0.7 \times 10^6 \]

To write this in correct scientific notation, we represent \(0.7\) in scientific notation as \(7 \times 10^{-1}\):

\[ 0.7 \times 10^6 = 7 \times 10^{-1} \times 10^6 = 7 \times 10^{5} \]

So the answer is:

\[ \boxed{7 \times 10^5} \]

Solomon needs to distribute 10.5 gallons of perfume among 3.5×102 containers. How many gallons of perfume will be in each container? Write the answer in scientific notation.(1 point) Responses 3×10−1 3 times 10 superscript negative 1 baseline 3×102 3 times 10 squared 0.35×10−1 0.35 times 10 superscript negative 1 baseline 3×10−2 3 times 10 negative squared Skip to navigation page 12 of 12

To find out how many gallons of perfume will be in each container, we need to divide the total amount of perfume by the number of containers:

Total perfume: \[ 10.5 \text{ gallons} \]

Number of containers: \[ 3.5 \times 10^2 \text{ containers} \]

Now we perform the division:

\[ \text{Gallons per container} = \frac{10.5}{3.5 \times 10^2} \]

First, we can simplify the division of the coefficients:

\[ \frac{10.5}{3.5} = 3 \]

Now we handle the powers of ten:

\[ \frac{1}{10^2} = 10^{-2} \]

Putting it all together:

\[ \text{Gallons per container} = 3 \times 10^{-2} \]

So, the final answer in scientific notation is:

\[ \boxed{3 \times 10^{-2}} \]

A large pavilion is made of 2.967×105 bricks. There are 6.9 bricks per square foot. How many square feet is the pavilion? Write the answer in scientific notation.(1 point) Responses 4.3×105 4.3 times 10 superscript 5 baseline 0.43×104 0.43 times 10 superscript 4 baseline 4.3×104 4.3 times 10 superscript 4 baseline 2.33×105 2.33 times 10 superscript 5 baseline Skip to navigation page 12 of 12

To find the number of square feet in the pavilion, we will divide the total number of bricks by the number of bricks per square foot.

Total number of bricks: \[ 2.967 \times 10^5 \text{ bricks} \]

Bricks per square foot: \[ 6.9 \text{ bricks/sq ft} \]

Now we perform the division:

\[ \text{Square feet} = \frac{2.967 \times 10^5}{6.9} \]

First, we divide the coefficients:

\[ \frac{2.967}{6.9} \approx 0.43 \]

Now we include the power of ten:

Since the division is purely of numbers, we keep that as it is:

\[ 10^5 \]

So, we have:

\[ \text{Square feet} = 0.43 \times 10^5 \]

To put \(0.43\) into proper scientific notation, we can write:

\[ 0.43 = 4.3 \times 10^{-1} \]

Thus,

\[ 0.43 \times 10^5 = 4.3 \times 10^{-1} \times 10^5 = 4.3 \times 10^{4} \]

Therefore, the final answer in scientific notation is:

\[ \boxed{4.3 \times 10^4} \]