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3 years ago

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A piece of copper with a volume of 8.25 cm³ has a mass of 73.92 g. A piece of iron with a volume of 5 cm³ and has a mass of 39.3

5 g. Which metal has the greater density?

1 answer:

skad [1K]3 years ago

4 0

Density<span> = Mass ÷ Volume

</span>

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Can someone please solve

BartSMP [9]

Answer: $\sqrt{7}$

Step-by-step explanation:

Using the Pythagorean theorem,

$3^2 + b^2 = 4^2\\\\9+b^2 = 16\\\\b^2 = 7\\\\b=\boxed{\sqrt{7}}$

8 0

2 years ago

Please answer below :-)

Evgen [1.6K]

Answer:

$2\frac{7}{10}$

Step-by-step explanation:

First, find the LCM and multiply through:

$12(\frac{2x-1}{4} ) +12(\frac{x}{3})=12(2)$

The LCM will cancel out the denominators (note that braket symbolizes Multiplication):

:3(2x-1) +4(x)=24

:6x-3+4x=24

Group like terms:

6x+4x=24+3

10x=27

Divide through by 10 to eliminate the coefficient of x

$\frac{10x}{10}=\frac{27}{10}$

: x= $\frac{27}{10}=2\frac{7}{10}$

3 0

2 years ago

What is the theoretical probability of the spinner on yellow?<br> A. 35% B. 25% C. 1/5 D. 2/5

Kazeer [188]

B. 25%
100 divided by 4 = 25

8 0

2 years ago

Read 2 more answers

Finish this question fast

umka21 [38]

Answer:

B. -3d + 47.25

Step-by-step explanation:

Each of them has $15.75

Each spent $d

Amount each still has = 15.75 - d

Therefore, total amount the 3 of them has = 3(15.75 - d) = 3*15.75 - 3*d

= 47.25 - 3d

Which is also am equivalent of -3d + 47.25

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3 years ago

If the 1st and 10th terms of geometric sequence are 4 and 100. Fine the nth term of the sequence

gulaghasi [49]

A(n)=ar^(n-1) so

100=4r^9

25=r^9

ln25=9lnr

ln25/9=lnr

r=e^(ln25/9)

a(n)=4e^((n-1)(ln25/9) if you wanted an approximation...

a(n)=4(1.43^(n-1))

3 0

3 years ago