Simplify. (-2/3) - (3/5)

Mathematics

2 answers:

bija089 [108]3 years ago

8 0

Common factors -10/15 -9/15
Subtract -19/15
Your answer is -19/15

Anastaziya [24]3 years ago

8 0

(-2/3) - (3/5)

(-2/3) + (-3/5)

(-10/15) + (-9/15)

(-19/15)

The answer will be -19/15 which simplifies to -1 4/15

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ipn [44]

Answer:

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Step-by-step explanation:

Step 1: Write equation

31.25 = u/5

Step 2: Solve for u

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Step 3: Check

Plug in u to verify it's a solution.

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Find thhe remainder when 7^203 is divided by 4

Aleksandr [31]

Using the square-and-multiply approach, we have

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and so, using the property that, if $a_1\equiv b_1\mod n$ and $a_2\equiv b_2\mod n$ , then $a_1a_2\equiv b_1b_2\mod n$ , we get

$7\equiv3\mod4$
$7^2\equiv9\equiv1\mod4$
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$7^6\equiv9\equiv1\mod4$
$7^{12}\equiv1\mod4$
$7^{25}\equiv7\times1\equiv7\equiv3\mod4$
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