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nadezda [96]
4 years ago
6

Simplify 63 7/8- 55 3/4

Mathematics
1 answer:
ivolga24 [154]4 years ago
4 0
511/8-243/4

511/8-486/8=25/8
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Multiply. Express each answer as a decimal.<br><br> 12⋅15<br> 34⋅200<br> (0.2)⋅60<br> (0.75)⋅20
katovenus [111]

Answer:

  1. 12×15=180
  2. 34×200=6800
  3. (0.2)×60=12
  4. (0.75)×20=15
3 0
3 years ago
Pls answer clearly thank you will be marking smartest correct answer!
balandron [24]

Number 9 is no because if you were to divide that it be a decimal and a decimal is an irrational number.

Number 10 is yes. When divide 2 by 5 you get 0.4 which is a terminating number because it never ends

3 0
3 years ago
Sombody help please quickly!!
VladimirAG [237]

Answer:

38%

Step-by-step explanation:

Change \frac{7}{25} to a percent, that is

\frac{7}{25} × 100% = 0.28 × 100% = 28%

Then 34% + 28% = 62% ← go by bus or car, leaving

100% - 62% = 38% walking to school

8 0
3 years ago
Which is an equivalent ratio to 7:5
cricket20 [7]

14:10 Multiply both numbers by the same value to find equivalent ratios

3 0
4 years ago
Read 2 more answers
I need to find the volume of a nose cone.
rjkz [21]

well then, the volume of the nose cone will just be the sum of the volume of the cylinder below and the cone above.

since the diameter for both is 8, then their radius is half that, or 4.

\bf \stackrel{\textit{volume of a cone}}{V=\cfrac{\pi r^2 h}{3}}~~ \begin{cases} r=radius\\ h=height\\ \cline{1-1} r=4\\ h=6 \end{cases}\implies V=\cfrac{\pi (4)^2(6)}{3}\implies V=32\pi \\\\\\ \stackrel{\textit{volume of a cylinder}}{V=\pi r^2 h}~~ \begin{cases} r=radius\\ h=height\\ \cline{1-1} r=4\\ h=6 \end{cases}\implies V=\pi (4)^2(6)\implies V=96\pi \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{volume of the nose cone}}{32\pi +96\pi \implies 128\pi }\qquad \approx \qquad 402.12

8 0
3 years ago
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