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Bas_tet [7]
3 years ago
8

What's 10 percent of 80

Mathematics
2 answers:
Scrat [10]3 years ago
8 0
10/100 x 80/1
=1x8
=8
krek1111 [17]3 years ago
6 0

Answer:

8

Step-by-step explanation:

\frac{is}{of} = \frac{percent}{100}

\frac{x}{80} = \frac{10}{100}

80x10 = 800

800 = 100x

800 divide 100 = 8

answer = 8

Hope this helped!! :)

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Round to the nearest hundredth (Geometric Series problem)
WITCHER [35]

Answer:

15.98

Step-by-step explanation:

∑₁¹⁰ 8(\frac{1}{4} )^{n-1}

=8[1+\frac{1}{4} +\frac{1}{16} + ........ +t_{10}]

We have to use the formula of sum of a G.P. series with common ratio r < 1.

If the first term is a, the common ratio is r and the number of terms is n then the sum [a + ar + ar² + ar³ + ......... up to n terms] is given by  

[a \times\frac{1-r^{n} }{1-r}]

= 8[1 \times \frac{1-\frac{1}{2^{10} } }{1-\frac{1}{2} } ]

= 15.98 (Answer)

4 0
3 years ago
Sam rotated parallelogram ABCD 90° clockwise around the origin. If angle A is 130° and angle B is 50°, what is the degree measur
fomenos
The degree measurement of angle A is already equal to 50 degrees.
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3 years ago
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To the nearest whole number, what is the surface area of a sphere with a volume of 140 cm³?
rjkz [21]

The answer to this question is B. 130cm^2.

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6 0
3 years ago
18 × (-2) ÷ 5 enter your anwser in decimal form
Blizzard [7]

Answer:

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Step-by-step explanation:

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