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Elodia [21]
3 years ago
10

Blaine buys 2 books and the total cost is $24.18. What is the constant of proportionality that relates the cost in dollars, y, t

o the number of books, x?
Mathematics
1 answer:
cestrela7 [59]3 years ago
5 0

Answer:

$ 12.09

Step-by-step explanation:

formula Y = KX

Where; y = $ 24.18

            x = 2 books

            k = constant of proportionality

Step 1. Do the equation based on the formula

Y = kx

$24.18 = k2

Step 2.  Divide by 2

$24.18/2 = k2/2

k = $12.09 (answer)

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Round 824.0472 to the nearest hundredth.
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Answer:

824.05

Step-by-step explanation:

the hundreths place is two spots behind the decimal, there is a four. Look at the number next to it is a 7 so you round up

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En una tienda comercial anuncia descuentos sucecivos del 30% y 20% en todos los electrodomésticos, ¿Que descuento único equivale
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0

Step-by-step explanation:

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2 years ago
Honestly yall, I know it’s probably very easy for y’all but I’m terrible at math :/ could y’all help
JulijaS [17]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What value of x makes the equation true?
Aleksandr [31]
♥ Answer: x=-6.9

Solve:
You need to <span>Simplify both sides of the equation.
</span>806.265=-116.85x
Now: <span>Flip the equation.
</span>-116.85x=806.265<span>
</span>Lastly <span>Divide both sides by -116.85.
</span>\frac{-116.85x}{-116.85} = \frac{806.265}{-116.85}


Final answer: x=-6.9


6 0
3 years ago
Find the perimeter of the following shape, rounded to the nearest tenth:
OLga [1]

Answer: the perimeter of the shape is 19.1

Step-by-step explanation:

To determine the length of each side of the quadrilateral, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side

For line AD,

AD² = 2² + 4² = 4 + 16 = 20

AD = √20 = 4.47

For line AB,

AB² = 1² + 5² = 1 + 25 = 26

AB = √26 = 5.1

For line BC,

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For line CD,

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The perimeter of a plane figure is the distance around the figure. Therefore

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Perimeter = 4.47 + 5.1 + 4.47 + 5.1 =

19.1

6 0
3 years ago
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