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galben [10]
3 years ago
15

Can someone answer this pls

Mathematics
1 answer:
pashok25 [27]3 years ago
7 0
The first should be 80 the second part of it should be 210 idk if thats completely right sorry if I'm wrong i hope i helped a little
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Can someone PLEASE help!!!! If you get it right I will mark Brainly!
Oksana_A [137]

Answer:

C. 3 g/cm³

Step-by-step explanation:

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→ Find Volume

V = 5 cm × 4 cm × 2 cm

V = 40 cm³

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→ Find density

\rm   = \frac{massa}{volume}

\rm  =  \frac{120}{40}

\red{\boxed{ \rm   \bold{= 3g/ {cm}^{2}} }}

5 0
3 years ago
Find the new price for the markup given. Round to the nearest cent if necessary.
Andrews [41]
$79.65 is the correct answer
5 0
3 years ago
Monica walks 2 miles each day Monday through Friday. She walks 3 miles on Saturday. She does not walk on Sunday. Monica calculat
fredd [130]

Answer:

390, since the answer I got was 377, and we are estimating so that’s the best estimate.

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3 years ago
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irga5000 [103]

Answer:

i think the answer is A

Step-by-step explanation:

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5 0
4 years ago
Read 2 more answers
The walnut Cove Ruritan Club sells hot dogs and drinks from a concession stand at the annual 4th of July parade. Carl bought 5 h
Naddik [55]

Answer:

The cost of one hot dog is $1.5 and the cost of one drink is $2.

Step-by-step explanation:

Let

<em>h</em> = the cost of a hog dog and <em>d</em><em> </em>= the cost of a drink

We know from the information given that:

  • Carl bought 5 hot dogs and 3 drinks and paid $13.50. This is equal to 5\cdot h +3\cdot d=13.50
  • Susan purchased 2 hot dogs and 3 drinks and was charged $9.00. This is equal to 2\cdot h +3\cdot d=9.00

So we have a system of equations

5\cdot h +3\cdot d=13.50\\2\cdot h +3\cdot d=9.00

We can solve by elimination as follows:

\mathrm{Multiply\:}5h+3d=13.5\mathrm{\:by\:}2:\\10h+6d=27\\

\mathrm{Multiply\:}2h+3d=9\mathrm{\:by\:}5:\\10h+15d=45

Subtract 10h+6d=27 from 10h+15d=45

(10h+15d=45) -(10h+6d=27)=\\9d=18

\mathrm{Solve}\:9d=18\:\mathrm{for}\:d:\\d=2

\mathrm{For\:}10h+6d=27\mathrm{\:plug\:in\:}\quad \:d=2

\mathrm{Solve}\:10h+6\cdot \:2=27\:\mathrm{for}\:h:\\h=\frac{3}{2} = 1.5

Therefore

<em>h</em> = $1.5 and <em>d</em><em> </em>= $2

8 0
4 years ago
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