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borishaifa [10]
3 years ago
15

Gerardo says that a cube with edges measure 10 centimeters has a volume that is twice as much as a cube with sides that measure

5 centimeters. Explainand correct Gerardo's error.
Mathematics
1 answer:
Andrej [43]3 years ago
3 0
V=LWH
cube
V=L^3
if it is doubled, then each dimention (LWH) is dobubled
since L=W=H
V=(2L)^3
V=8L^3
compared to orignal
L^3 vs 8L^3 it is 8 times more


demonstarte

10^3=1000
5^3=125
1000/125=8, not 2
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Marina86 [1]
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3 years ago
80% percent of Steph's annual income is from her full-time job. What fraction of Steph's annual income is from her full-time job
nirvana33 [79]

Answer:

<em>\frac{4}{5} of Steph's annual income is from her full-time job.</em>

Step-by-step explanation:

Suppose, Steph's annual income is  x

Given that, 80% of Steph's annual income is from her full-time job.

So, <u>the amount of income from her full time job will be</u>:  (x\times 80\%)= (x\times\frac{80}{100})= 0.8x

Now, for finding the income from her full time job as a fraction of Steph's annual income, we just <u>need to divide "income from full time job" by "total annual income"</u>.

So, the fraction will be:  \frac{0.8x}{x}= 0.8 =\frac{8}{10}= \frac{4}{5}

That means,  \frac{4}{5} of Steph's annual income is from her full-time job.

5 0
2 years ago
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The cylinders are similar the volume of the larger cylinder is 9648 cubic inches what is the volume of the smaller cylinder
olga nikolaevna [1]
To find the volume of the smaller cylinder you will need to determine the scale factor by comparing the 2 cylinders. The scale factor is 1:2. This means that each dimension will be divided by 2 when going from the larger to the smaller figure.

Because volume is a three dimensional measurement, you need to divide 9648 by 2, three times.

9648/2=4824
4824/2=2412
2412/2=1206 cubic inches

The volume of the smaller container is 1206 cubic inches.
3 0
2 years ago
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The triangle below has a total perimeter of 450 cm:
Korvikt [17]
Equation: 450 = 128 + 150 + n

work:

1st step:
128+150 = 278

2nd step:
450-278 = 172

answer: 172

3rd step (checking) :
450 = 128 + 150 + 172
450 = 278 + 172
450 = 450

3 0
2 years ago
Help ASAP please
Agata [3.3K]

Answer:

55,000

Step-by-step explanation:

I already explained it on another problem but I'll show the equation again.

0.74x = 40,700

x = 55,000

7 0
3 years ago
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