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sukhopar [10]
4 years ago
6

Which property is BEST to use when combining 3/5 + 1/4 +2/5​

Mathematics
2 answers:
nevsk [136]4 years ago
8 0

Answer:

commutative property of addition

Step-by-step explanation:

iragen [17]4 years ago
6 0

Answer:

Step-by-step explanation:

Commutative property of addition:  The order in which you add these fractions together doesn't matter.

I would combine 3/5 and 2/5 first, as that readily results in 5/5, or just 1.

Then we have 1 1/4, or 1.25, or 5/4 as the final answer.

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Upon completion of an experiment a student realizes that the technique used for measuring the length and width of a rectangle ha
eduard

Answer:

809.4cm²

Step-by-step explanation:

Given the following :

Systematic error = 3.8cm (The measured length is always more than the actual length.)

Most probable dimension :

Width = 85.7 cm

Length = 123.5 cm

Hence most probable area of Rectangle :

Area = Length × Width

Area = 85.7cm × 123.5cm = 10583.95 cm²

Dimension due to Systematic error :

Length = (85.7cm + 3.8cm) = 89.5cm

Width = (123.5cm + 3.8cm) = 127.3cm

Area = Length × width

Area = ( 89.5cm × 127.3) = 11393.35cm²

Systematic error of the area :

value of area with Systematic error - Probable value of area :

11393.35cm² - 10583.95 cm² = 809.4cm²

6 0
3 years ago
To make fruit punch for a party, we need 4 1⁄2 gallons of ginger ale, 1 gallon of strawberry juice, 2 3⁄4 gallons of frozen oran
lina2011 [118]

For this case we convert the mixed numbers to fractions:

4 \frac {1} {2} = \frac {2 * 4 + 1} {2} = \frac {9} {2}\\2 \frac {3} {4} = \frac {4 * 2 + 3} {4} = \frac {11} {4}

Now we add the fractions:

\frac{9} {2}+1+ \frac {11} {4} + \frac {1} {8} =

We find the least common multiple of the denominators. The l.c.m is 8, then we divide by each denominator and multiply the result by each numerator.

\frac {36 + 8 + 22 + 1} {8} =\\\frac {67} {8} =

8,375

Thus, the punch recipe implies 8.375 gallons. If we convert to a mixed number we have:

8 \frac {3} {8} gallons

Answer:

8 \frac {3} {8}gallons

4 0
3 years ago
Hey if you see this i really need your help its an exam thanks
professor190 [17]

Answer:

I think it is Letter B

Because I add the two

L-2, +N 12=10

7 0
2 years ago
Which is the equation of the function?
dlinn [17]

Answer

its the third one.

Step-by-step explanation:

7 0
3 years ago
Can someone help me solve 3x-4y>-4
ahrayia [7]
What do you mean by solve?
Put in slope-intercept form would be: y<(3/4)x+1
4 0
3 years ago
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