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Harlamova29_29 [7]
3 years ago
6

What is the value of this expression? 2/3 + (-5/7)

Mathematics
2 answers:
Anton [14]3 years ago
5 0

i \: hope \: it \: will \: help \: you

Refer to the attachment...

inn [45]3 years ago
5 0

\frac{2}{3}  + ( -  \frac{5}{7} ) \\  =  \frac{2 \times 7 - 5 \times 3}{21}  \\  =  \frac{14 - 15}{21}  \\  =  \frac{ - 1}{21}

<u>Answer</u><u>:</u>

<u>\frac{ - 1}{21}</u>

Hope you could understand.

If you have any query, feel free to ask.

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Does any one know how to do determining the GFC
nataly862011 [7]

Answer:

Yes, GCF stands for (greatest common factor)

so to find it do this:

   List the prime factors of each number.

   Circle every common prime factor — that is, every prime factor that's a factor of every number in the set.

   Multiply all the circled numbers. The result is the GCF.

Step-by-step explanation:

4 0
3 years ago
Mike has a large amount of chocolate spheres, each chocolate sphere having a radius of 2 inches.
USPshnik [31]

The value of the expression Z² + Q² is 4321

<h3>How to evaluate the expression?</h3>

The radius of the chocolate spheres is given as:

r = 2

The maximum number of chocolates that can fit in a spherical capsule is calculated as:

Max = R³/r³

Where:

R represents the radius of the sphere.

For the spherical capsule whose radius is 8 inches, we have:

Z = 8³/2³

Evaluate

Z = 64

For the spherical capsule whose radius is 5 inches, we have:

Q = 5³/2³

Evaluate

Q = 15.625

Remove decimal

Q = 15

So, we have:

Z² + Q² = 64² + 15²

Evaluate the exponent

Z² + Q² = 4096 + 225

Evaluate the sum

Z² + Q² = 4321

Hence, the value of Z² + Q² is 4321

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brainly.com/question/1972490

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3 0
2 years ago
Solve for the value of v.<br> (56+6)<br> (40+3)
lesantik [10]

Answer:

2666 if you multiply the sum of the parenthesis

but if you add them then the answer is 105

Step-by-step explanation:

56+6=62

40+3=43

62•43= 2666

6 0
3 years ago
How to solve a system of equations using elimination
mestny [16]
In order to use the elimination<span> method, you have to create variables that have the same coefficient—then you can eliminate them. Multiply the top </span>equation<span> by 5. Next add the</span>equations<span>, and </span>solve<span> for y. Substitute y = 10 into one of the original </span>equations<span> to find x</span>
3 0
3 years ago
Read 2 more answers
Reduce all answers to their lowest terms<br><br> 20/27 / 10/9
Nat2105 [25]
If I am looking at this correctly you have (20/27) divided by (10/9).
The rule for dividing fractions is to keep the first term as it is, change the division to a multiplication, and flip the second term to its reciprocal. Them multiply as usual.
(20/27) * (9/10) = 180 / 270 = 2/3
8 0
3 years ago
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