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xxTIMURxx [149]
3 years ago
6

Henry has a total of 26 quarters and dollars in his pocket. They're worth $17. How many of each type of coin

Mathematics
1 answer:
hodyreva [135]3 years ago
8 0
I’m pretty sure the answer is D.
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Find C to form completing Square<br> <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B5x%20%2B%20C" id="TexFormula1" title="x^
postnew [5]

Answer:

\frac{25}{4}  (or 6.25)

Step-by-step explanation:

Let's do a simple square problem to see the relationship between the elements of the resulting equation...

(x+3)(x+3) = x(x+3) + 3(x+3) = x^{2} +3x + 3x + 9 = x^{2} + 6x + 9

As you see, the number of 'x' (6) is the double of the numeric part of the binomial expression (3), while the numeric-only part (9) is the square of the numeric part of the binomial expression (3).

So, if we look at the formula from the problem, we see the the number of 'x' is 5. To obtain the C value, we need to divide the 5 by 2... then get the square value of the result.

\frac{5}{2} * \frac{5}{2} = \frac{25}{4}  (or 6.25)

3 0
3 years ago
A bouquet of 40 flowers is made up of roses, carnations, and daisies. The bouquet is 45% roses and 15% carnations. How many of t
max2010maxim [7]

Answer:

18 flowers are roses (so sorry this got to me so late!)

Step-by-step explanation:

find 45% of 40

4 0
3 years ago
Simplify.<br><br> Rewrite the expression in the form 9n.<br><br> (9-3)(912)=
Yakvenalex [24]

Answer:

Step-by-step explanation:

(9-3)*912 = 6 * 912

               = 5472

              = 9* 608

7 0
2 years ago
Solve the following system of equations. What is one x-value of a solution?
gulaghasi [49]

Answer:

There is some mistake in the question, because the solutions are x = -1.445 and x = -34.555

Step-by-step explanation:

Given the functions:

f(x) = x² + 4x + 10

g(x) = -32x - 40

we want to find the points at which f(x) = g(x).

x² + 4x + 10 = -32x - 40

x² + 4x + 10 + 32x + 40 = 0

x² + 36x + 50 = 0

Using quadratic formula:

x = \frac{-b \pm \sqrt{b^2-4(a)(c)}}{2(a)}

x = \frac{-36 \pm \sqrt{36^2-4(1)(50)}}{2(1)}

x = \frac{-36 \pm 33.11}{2}

x_1 = \frac{-36 + 33.11}{2}

x_1 = -1.445

x_2 = \frac{-36 - 33.11}{2}

x_2 = -34.555

5 0
3 years ago
Enter the values for the highlighted variables that show how to subtract the rational expressions correctly: StartFraction 2 Ove
alexira [117]

Answer:

6 2 6 2 6 6 1

Step-by-step explanation:

just did it on ed.

5 0
2 years ago
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