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iVinArrow [24]
3 years ago
10

The density of water is 1 gram per cubic centimeter. A more dense object will sink, and a less dense object will float. Will a m

arble with a radius of 1.4 cm and a mass of 9 grams sink or float in water? The marble will (float/sink) because the density of the marble is about (0.71, 0.78, 1.28, 1.40) grams per cubic centimeter.
Mathematics
1 answer:
KengaRu [80]3 years ago
6 1

Answer:

sink at 1.28 g/cm^3

v = 4/3 \pi r^{3}

v = 4/3 \pi 1.4^{3}

v =11.49 /9 =1.28

Step-by-step explanation:

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Step-by-step explanation:

8 0
3 years ago
Elvira is comparing prices between two different suppliers of fresh lettuce. Val’s Veggies charges $250 for delivery plus $1.50
ad-work [718]

Answer:

61 bags of lettuce

Step-by-step explanation:

Let's create two equations representing the cost of bags of lettuce:

Val's Veggies: 250 + 1.50x = V

Sally's Salads: 100 + 4.00x = S

If you buy 60 bags of lettuce from either store, the answers will be equivalent:

If x = 60

250 + 1.50x = V

250 + 90 = V

340 = V

100 + 4.00x = S

100 + 240 = S

340 = S

Now that both equations are equivalent, all we need to do to tip the balance and make Val's Veggies cheaper is purchase one more bag of lettuce:

x = 61

250 + 1.50x = V

250 + 91.50 = V

341.50 = V

100 + 4.00x = S

100 + 244 = S

344 = S

Since V represents the price of a bag of lettuce at Val's Veggies and V is now less than S (Sally's Salads), Val's Veggies is now the cheaper option.

Therefore, 61 bags of lettuce must be purchased in order for Val's Veggies to be the cheaper option.

7 0
3 years ago
Whats 4 + 2 i forgot,<br> and whats 5 + 5 + 9 + 8 + 90+ 90 - 1000 i also forgot
Vlad [161]

Answer:

4 + 2 = 6

5 + 5 + 9 + 8 + 90+ 90 - 1000 = -793

Step-by-step explanation:

hope this helps ;)

have a great day!! <3

8 0
3 years ago
Find two different 2 by 2 matrices a and b such that ab=ba
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Let \mathbf A=\mathbf I be the identity matrix. Then pick whatever matrix you like for \mathbf B.
8 0
3 years ago
11. Use multiplication to find an equivalent<br> fraction for 1/3
nikitadnepr [17]

Answer: 1/3*2*2=2/6

Step-by-step explanation:

Hope this helps

4 0
3 years ago
Read 2 more answers
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