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Norma-Jean [14]

2 years ago

5

A liquid is found to have a volume of 50 mL (in a graduated cylinder). When placed on a balance, the liquid and graduated cylind

er has a mass of 125 g. The empty graduated cylinder has a mass of 75 g. What is the density of the liquid? g

1 answer:

Lena [83]2 years ago

8 0

1g/ml

Mark brainliest please

Hope this helps you

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Consider the dot plot which shows the distribution of data collected on the amount of time Marty spends playing video games each

Marta_Voda [28]

Answer:

the correct answer is b.mean is greater than median

Step-by-step explanation:

i got the answer on usatestprep hope it helps:)

8 0

3 years ago

You go shopping at a local department store with your friend and cousin. You buy one pair of jeans, four pairs of shorts, and tw

VashaNatasha [74]

Answer: Cost per pair of jeans = $ 20

Cost per pair of shorts = $12

Cost per shirt = $8

Step-by-step explanation:

Let x= cost per pair of jeans

y = Cost per pair of shorts

z= cost per shirt.

For you, total cost = x+4y+2z= 84

For your friend, total cost = 2x+y+3z=76

For cousin, total cost = x+2y+z= 52

Required system:

$x+4y+2z=84\ (i)\\ 2x+y+3z=76\ (ii)\\ x+2y+z=52\ (iii)$

from (i), $x=84-4y-2z$ (*)

put this in (ii) and (iii) we get

$2\left(84-4y-2z\right)+y+3z=76\\\Rightarrow\ -7y-z+168=76\ (iv)\\\\ 84-4y-2z+2y+z=52\\\Rightarrow\ -2y-z+84=52 \ (v)$

from (iv), $y=-\frac{z-92}{7}\ (vi)$

$\mathrm{Subsititute\:}y=-\frac{z-92}{7}\ \text{in}\ (v)$

$-2\left(-\frac{z-92}{7}\right)-z+84=52\\\\\Rightarrow\ -2\left(-\frac{z-92}{7}\right)-z=-32\\\\\Rightarrow\ -\frac{5z}{7}-\frac{184}{7}=-32\\\\\Rightarrow\ -5z-184=-224\\\\\Rightarrow\ -5z=-40\\\\\Rightarrow\ z=8$

$\mathrm{Subsititute\:}z=8\text{ in (vi)}$

$y=-\frac{8-92}{7}\\\\\Rightarrow \ y=12$

$\mathrm{Subsititute\:}z=8,\:y=12\text{ in (*)}$

$x=84-4\cdot \:12-2\cdot \:8\\\\\Rightarrow\ x= 20$

Hence, x= 20, y= 12 , z=8

So, Cost per pair of jeans = $ 20

Cost per pair of shorts = $12

Cost per shirt = $8

7 0

3 years ago

You drink about 1.7 L of water a day. How long will it take you to drink 100 L of water?

Ann [662]

Answer:

59

Step-by-step explanation:

100/1.7=58.8

4 0

3 years ago

What expression is equivalent to 8^4/3?

Ugo [173]

Answer:16

Step-by-step explanation:

8^(4/3)=(cube root of 8)^4=2^4=2×2×2×2=16

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3 years ago

Can you please help

Dvinal [7]

Answer: 3x -4

Step-by-step explanation:

6 0

3 years ago