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Dmitrij [34]
3 years ago
6

0.076952 to 3 significant figure

Mathematics
2 answers:
worty [1.4K]3 years ago
8 0

Answer:0.0770

Step-by-step explanation:

0.076952 the five makes 9 round up.

Since you can't have ten the six increases by 1 so it is

0.077

Then you could add a zero on the end to 0.0770 so it is to 3 sig fig

Step2247 [10]3 years ago
6 0

Answer:

0.0770.

Step-by-step explanation:

That would be  rounded to the  next 3 digits after the second 0.

So it is 0.0770.

(The 7695 is rounded  to 770 because the digit after the 9 is 5, so the 69 is rounded up to 70).

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one tamk of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. To obtain a mixture of
Zarrin [17]

Answer:

20 gallons were used from the tank with the octane rating of 80.

Step-by-step explanation:

Given : One tank of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. To obtain a mixture of 60 gallons with an octane rating of 120.

To find : How many gallons should be used from the tank with the octane rating of 80?

Solution : Let x be the volume of gas whose octane rating is 140 and

y be the volume of gas whose octane rating is 80.

Then, we form the equation as:

(1) x\times140 + y\times80 = 60\times120

140x+80y = 7200

or  7x+4y = 360 .........[3]

(2) x + y = 60

Now multiply equation (2) by 4  

4x + 4y = 240 ...........[4]

Subtract (4) from (3)  

7x+4y-4x-4y=360-240

3x=120

x=\frac{120}{3}

x=40

Put x in equation [4] we get,

4(40) + 4y = 240

160 + 4y = 240

4y = 80

y=\frac{80}{4}

y=20

Therefore, x=40 and y=20

So, 20 gallons were used from the tank with the octane rating of 80.






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3 years ago
Which sequence is modeled by the graph below? coordinate plane showing the points 1, 1; 2, 2; 3, 4; and 4, 8
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