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omeli [17]
2 years ago
13

-6/13 - (-7/15) pls solve it for me !!! :)

Mathematics
2 answers:
MAXImum [283]2 years ago
8 0

Answer:

First, make the double negative a positive.

So, (-6/13) + (7/15)

Then multiply the numerator, 6×7=42

And denominator 13×15=195

42/195 simplify by dividing both by 3 so 14/65

Roman55 [17]2 years ago
5 0

Answer:

Step-by-step explanation:

given:  -6/13 - (-7/15)

= -6/13 + 7/15

= (-6/13)(15/15) + (7/15)13/13)

= -90/195 + 91/195

=  - 1/195

:)

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Find the length of side x I simplest radical form​
alekssr [168]

Answer:

Option A

Step-by-step explanation:

By applying Pythagoras theorem in ΔABC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

AC² = AB² + BC²

AC² = 6² + 5²

AC = \sqrt{61}

Similarly, by applying Pythagoras theorem in ΔACD,

AD² = AC² + CD²

(10)² = (\sqrt{61})^2 + x²

x² = 100- 61

x² = 39

x = √(39)

Option A will be the answer.

7 0
2 years ago
6) Find b(10) in the sequence given by b(n) = -5 + 9(n-1).<br> b(10) =?
Sergeeva-Olga [200]

Answer:

76

Step-by-step explanation:

1. Replace n with 10. The equation will look like:

-5+9(10-1)

2. Remember PEMDAS! The first step in solving the equation is solving whatever is in the parenthesis:

-5+9(9)

3. The next step is exponents, but since there aren't exponents in the equation, we move to multiplication and division. The equation should now look like this:

-5+81

4. Now we move on to addition and subtraction; add the two numbers!

-5+81=76

There's your answer!! Hope this helped :)

6 0
3 years ago
A customer purchased a total of 23 hamburgers and chicken sandwiches. Each hamburger costs $3.50 and each chicken sandwich costs
Bezzdna [24]

Answer:

25 2/7

Step-by-step explanation:

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6 0
2 years ago
Rachel bought 3 CDs that were each the same price. Including sales tax, she paid a total of $35.40. Of that total, $2.70 was tax
kotegsom [21]

Answer:

Step-by-step explanation:

Total bill - the tax = cost of 3CD's

Our total bill is $35.40, the tax is $2.70, therefore,

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3 CD's = $32.70

Divide that by 3 to get the cost per CD:

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5 0
3 years ago
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Sergeeva-Olga [200]

Answer:

It is 12.9, 13.1, 13.2 C.

Step-by-step explanation:

5 0
3 years ago
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