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Westkost [7]
3 years ago
15

Factor the expression. 15n−18

Mathematics
2 answers:
Taya2010 [7]3 years ago
6 0
Divide each term by 3...
15n - 8 = 3(5n - 6)


Alex17521 [72]3 years ago
5 0
I saw that you put this question here twice so here's my answer again with the math.


Factor <span>15n−18
</span><span>15n−18
</span><span>=<span>3<span>(5n−6<span>)

</span></span></span></span>3<span>(5n−6<span>)

5n-18 factored is </span></span>3<span>(5n−6<span>)</span></span>
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How do i simplify this
LekaFEV [45]

Answer:

60a - 72ab

Step-by-step explanation:

B and C do not work because there is no "c" in the expression

-3(-4a[0-6b+5])

-3(-4a[5-6b])

-3(-20a+24ab)

60a - 72ab

None of the given choices are correct.

6 0
3 years ago
Three varieties of coffee long dash— Coffee​ A, Coffee​ B, and Coffee C long dash— are combined and​ roasted, yielding a 51​-lb
asambeis [7]
Let A, B and C be the number of pounds of each brand of coffee.
A+B+C=51 (weight) which is 3A+B=51 because C=2A, B=51-3A
15.99A+13.21B+19.90A=51×12.82=653.82 (cost) I’ve used C=2A
35.89A+13.21B=653.82
Substitute for B:
35.89A+13.21(51-3A)=653.82
35.89A+673.71-39.63A=653.82
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8 0
3 years ago
A hiking trail is 2 3/5 miles long. Lucy walks 1/2 of the trail before stopping for a water break. How many miles does Lucy walk
Misha Larkins [42]

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4 0
2 years ago
Read 2 more answers
Simplify each of the following powers of i. i^99=
Scorpion4ik [409]
I= sqrt (-1)

If the power is
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99 is odd so now is
-i if (99+1)/2 is even or is
i is (99+1)/2 is odd

Now check (99+1)/2= 100/2= 50,
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8 0
3 years ago
Read 2 more answers
What is -9x-(2x/-3) When x equals 7
yuradex [85]
-9x- \frac{2x}{-3}

-9*(7) -  \frac{2*7}{-3}

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\frac{2*7}{-3}  =  \frac{14}{-3}

Apply the fraction  rule : \frac{a}{-b} = -  \frac{a}{b}

= - \frac{14}{3}

-63-( -\frac{14}{3} )

Apply rule  - ( - a) = a

-63+ \frac{14}{3}

Convert  element to fraction :

63 =  \frac{63}{1}

-\frac{63}{1} + \frac{14}{3}

Find the LCD 1*3 = 3

- \frac{63*3}{3}+ \frac{14}{3}

\frac{-3+63+14}{3} =  \frac{-175}{3}

<span>Apply the fraction  rule : \frac{a}{-b} = - \frac{a}{b}</span>

= - \frac{175}{3}

hope this helps!

4 0
3 years ago
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