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REY [17]
3 years ago
5

Gomez found the mass of 3 rocks for a science project the first rock had a mass of 19.28 grams the second rock has a mass of 25.

3 grams in the third Rock had a mass of 46.3 grams how much greater was the mass of the third Rock in the combined mass of the other two rocks
Mathematics
1 answer:
Stella [2.4K]3 years ago
7 0
This question simply asks for 
46.3-(19.28+25.3) which equals
46.3-44.58



to get our final answer, 
1.72

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Answer:

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Step-by-step explanation:

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21.4

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Answer:

s = 70

Step-by-step explanation:

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2 years ago
A map has a scale of 2.5 inches=125 miles. If the actual distance is 300 miles what is the distance on the map
e-lub [12.9K]
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3 years ago
2. CHEMISTRY How many liters of 15% acid and
Wewaii [24]

Answer:  

<h3>         26²/₃ liters of 15% acid and 13¹/₃ liters of 33% acid</h3>

Step-by-step explanation:

Concentration            Amount of             Amount

of Solution                   Solution (L)             of Acid

    15%                                x                         0.15x

    33%                               y                         0.33y

    21%                              40                      0.21•40      

       

x + y = 40    ⇒  x = 40 - y

0.15x + 0.33y = 0.21•40

0.15(40 - y) + 0.33y = 0.21•40

6 - 0.15y + 0.33y = 8.4

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        y = 13¹/₃

x = 40 -  13¹/₃ = 26²/₃

8 0
3 years ago
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