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Sholpan [36]
2 years ago
7

Enter the value of w so the expression -5 +0.6W is equivalent to w (2.5 – 0.3w)​

Mathematics
1 answer:
NeX [460]2 years ago
8 0

9514 1404 393

Answer:

  w = -2 or 8 1/3

Step-by-step explanation:

Setting the two expressions equal makes a quadratic equation:

  -5 +0.6w = w(2.5 -0.3w)

  0.3w^2 -1.9w -5 = 0 . . . . . . subtract the right-side expression

  3w^2 -19s -50 = 0 . . . . . . . multiply by 10 to give integer coefficients

  (3w -25)(w +2) = 0 . . . . . . . factor

We can use the zero product rule to find the solutions. The product will be zero only if a factor is zero.

  3w -25 = 0   ⇒   w = 25/3 = 8 1/3

  w +2 = 0   ⇒   w = -2

The values of w that make the two expressions equivalent are -2 and 8 1/3.

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2[3(4^2 +1)] - 2^3.
Rina8888 [55]

Answer:

94

Step-by-step explanation

P.E.M.D.A.S

4^2=16

(16+1)=17

[3(17)]=51

2[51]=102

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102-8=94

5 0
3 years ago
What is 3x - y = -4 2x - y = -10<br> Using substitution
kipiarov [429]
3x - y = -4
3x - (-10) = -4 Substitute
3x + 10 = -4 Simplify
3x = -14 Separate numbers and variables
x = -14/3 Divide

2x - y = - 10
2x - (-10) = -10 Substitute
2x + 10 = -10 Simplify
2x = -20 Separate numbers and variables
x = -10 Divide
5 0
3 years ago
Read 2 more answers
In the arithmetic sequence, -12, -17, -22, -27... which term has a value of -68?​
RSB [31]

Answer:

-68 is not a term in the given sequence

Step-by-step explanation:

The given sequence is -12, -17, -22, -27...

There is a common difference of d=-17--12=-5

The explicit rule for this sequence is f(n)=-12-5(n-1)

Or f(n)=-5n-7

To find the term that has a value of -68 we equate the explicit formula and solve for n.

 -68=-5n-7

 \implies -68+7=-5n

 \implies -61=-5n

n=\frac{61}{5} =12.2

The position should be a natural number.

Since n is a decimal, it tells us that -68 is not a term in the given sequence

7 0
3 years ago
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Sophie [7]

Answer:

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Step-by-step explanation:

I don't see a question do you?

5 0
2 years ago
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Whats 9+`10+10+10-10
Mkey [24]

Answer:

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Step-by-step explanation:

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2 years ago
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