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VashaNatasha [74]
3 years ago
14

Which expression should be used to estimate the answer to this story problem? Marcus is reading a long novel. For 5 nights, he r

ead 83 pages each night. How many pages did Marcus read? A. 80 ÷ 5 B. 90 × 5 C. 80 × 5 D. 90 ÷ 5
Mathematics
2 answers:
lord [1]3 years ago
8 0
It is C. I hope this helps because it is asking for the total number of pages.
Margarita [4]3 years ago
4 0
I think it's D.
Hope this will help you alot
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What is the approximate volume of the sphere​
NISA [10]

Answer:

523.33 mm³

Step-by-step explanation:

The general formula for the volume of a sphere is:

V = \frac{4}{3}\pi r^{3}

The radius for the given sphere is 5mm, so plugging that value into the equation and using 3.14 for π:

V = \frac{4}{3}(3.14)(5^{3})

V ≈ 523.33 mm³

8 0
4 years ago
H(n) - 4n - 4; Find h(0)
9966 [12]
4h hi fing h0 9 p h)n 0
6 0
3 years ago
HDTV screens usually have a width-to -height ratio of 16:9. Which screen dimensions are in the same proportion?
love history [14]

Answer:

4 feet by 3 feet

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

width-to -height ratio of 16:9

Let analyse all possible answers:

  • 4 feet by 3 feet

16 divided by 4 is the same as 9 divided by 3 => it is true

  • 28 inches by 21 inches

16 divided by 28 is different as 9 divided by 21 => it is wrong

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16 divided by 48 is different as 9 divided by 27 => it is wrong

  • 26 inches by 19 inches

16 divided by 26 is different as 9 divided by 219=> it is wrong

We choose A.

Hope it will find you well.

7 0
3 years ago
Expand the expression. Fill in the blanks<br><br> 3(n + 7)<br><br> n +( <br> )7
morpeh [17]
3n + 21 is the answer
4 0
2 years ago
5. Solve for x using any method you'd like. Round to the hundredth. Show all your work. (2 points each) d. 20x^3 = 7x^5
Sindrei [870]

Solving this equation for x, we have:

\begin{gathered} 20x^3=7x^5 \\ 7x^5-20x^3=0 \\ x^3(7x^2-20)=0 \\ \begin{cases}x^3=0\to x=0 \\ 7x^2=20\to x=\pm\sqrt[]{\frac{20}{7}}\end{cases} \end{gathered}

6 0
1 year ago
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