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defon
2 months ago
15

5 markers cost \$6.55$6.55dollar sign, 6, point, 55. Which equation would help determine the cost of 444 markers? Choose 1 answe

r: Choose 1 answer: (Choice A) A \dfrac{4}{5} = \dfrac{\$6.55}{x} 5 4 ​ = x $6.55 ​ start fraction, 4, divided by, 5, end fraction, equals, start fraction, dollar sign, 6, point, 55, divided by, x, end fraction (Choice B) B \dfrac{4}{\$6.55} = \dfrac{x}{5} $6.55 4 ​ = 5 x ​ start fraction, 4, divided by, dollar sign, 6, point, 55, end fraction, equals, start fraction, x, divided by, 5, end fraction (Choice C) C \dfrac{5}{4} = \dfrac{x}{\$6.55} 4 5 ​ = $6.55 x ​ start fraction, 5, divided by, 4, end fraction, equals, start fraction, x, divided by, dollar sign, 6, point, 55, end fraction (Choice D) D \dfrac{4}{x} = \dfrac{\$6.55}{5} x 4 ​ = 5 $6.55 ​ start fraction, 4, divided by, x, end fraction, equals, start fraction, dollar sign, 6, point, 55, divided by, 5, end fraction (Choice E) E None of the above Stuck?Watch a video or use a hint.
Mathematics
1 answer:
Inessa [12.5K]2 months ago
3 0

Answer:

  E  None of the above

Step-by-step explanation:

A suitable proportion is...

  \dfrac{4}{5}=\dfrac{x}{\$6.55}

or any other equivalent representation of this proportion. None of the provided options correspond with this, hence it is valid to select...

  None of the above.

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Which shows the factored form of x2 – 12x – 45?
AnnZ [12381]
Hello!

(x+a)·(x+b) equals x²+xa+xb+ab which simplifies to x²-12x-45

x² equals x²
xa+xb can be expressed as (a+b)x = -12x thus, (a+b) = -12
ab equals -45

Under what conditions do (a+b) equal -12 and ab equal -45?

+3-15 results in -12 while (+3)(-15) gives -45
-3-15 yields -18 and (-3)(-15) results in +45
+3+15 produces +18 and (+3)(+15) also equal to +45
-3+15 equals +12 and (-3+15) results in -45

Conclusion:

(x+3)(x-15) 



6 0
2 months ago
Read 2 more answers
A square OABC with the length of a side 6 cm and circle k(O) with a radius 5 cm are given. Which of the lines OA , AB , BC , or
tester [12383]

Answer:

AC and OA

Step-by-step explanation:

-A secant refers to a line that intersects two points on a circle.

-We have a square OABC with each side measuring 6cm and a circle with radius r=5cm, centered at O. The circle's radius is shorter than the side of the square:

-The circle intersectsOA andOC, while it does not intersect AB and BC.

Therefore, AC and OA serve as secants for the circle.

5 0
2 months ago
The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,00
Svet_ta [12734]

Answer: the likelihood of a randomly selected tire lasting exactly 47,500 miles is 0.067

Step-by-step explanation:

Since the expected lifespan of this tire brand follows a normal distribution, we will use the normal distribution formula:

z = (x - µ)/σ

Where

x = lifespan of the tire in miles.

µ = mean

σ = standard deviation

The given figures include,

µ = 40000 miles

σ = 5000 miles

The probability that a tire will last precisely 47,500 miles

P(x = 47500)

For x = 47500,

z = (40000 - 47500) / 5000 = -1.5

According to the standard normal distribution table, the probability associated with this z score is 0.067

6 0
2 months ago
100 point!!!
Leona [12618]

Answer:

45 grams

Step-by-step explanation:

1st order: 27 people

15 people:

100 g

Ginger: 20 g

Turmeric: 25 g

Coriander: 35 g

Cumin Seeds: 20 g

20+25+35+20=60+40=100

For 1 person:

Ginger: 1 1/3 g

Turmeric: 1 2/3 g

Coriander: 2 1/3 g

Cumin Seeds: 1 1/3 g

Multiply the total by 27

For 27 people:

Ginger: 36 g

Turmeric: 45 g

Coriander: 63 g

Cumin Seeds: 36 g

45 g for Turmeric

4 0
1 month ago
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