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3 years ago

7

Identify the property or rule shown by each equation

1 answer:

Ymorist [56]3 years ago

6 0

Can't really help you if I can't see the equations, mind sending a pic or typing them in?

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The table below shows the numbers of tickets sold at a carnival and the amounts of money in dollars collected Cost of Carnival T

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D. y=3x

Explanation:

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3 years ago

A package of wildflower seeds contains 34 baby's breath seeds and 50 other seeds. What is the probability that a randomly select

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Thirty four out of eighty

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3 years ago

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if there are four trucks parked in line and after the first truck each truck weighed 2 more tons than the one before. They all w

algol13

Each truck weighs five tons.

1st truck: n
2nd truck: n + 2
3rd truck: n + 4
4th truck: n + 6

n + n + 2 + n + 4 + n + 6 = 32
4n + 12 = 32
- 12 - 12
--------------------
4n = 20
---- ------
4 4

n = 5

6 0

3 years ago

0.12 over 0.20 as a percent

Afina-wow [57]

$\dfrac{0.12}{0.2} = \dfrac{0.12 \times 100}{0.2 \times 100} = \dfrac{12}{20}$

$\dfrac{12}{20} \times 100 = 60\%$

5 0

3 years ago

A heated piece of metal cools according to the function c(x) = (.5)x − 7, where x is measured in hours. A device is added that a

Mama L [17]

Answer:

Option (b) is correct.

The temperature of the metal after two hours is 28 Celsius

Step-by-step explanation:

Given : A heated piece of metal cools according to the function $c(x)=(0.5)^{x-7}$ , where x is measured in hours and then a cooling device id added that aids in cooling according to the function $h(x)=-x-2$

We have to determine the temperature of the metal after two hours.

Let w(x) denotes the temperature of metal .

Thus, w(x) can be given by function c(x) + h (x) = [c + h](x)

Thus, $w(x)=[c+h](x)\\\\w(x)=(0.5)^{x-7}+(-x-2)\\\\$ , where x is measured in hours.

Thus, after two hours that is when x = 2

the temperature of metal is given by w(2)

$w(x)=(0.5)^{x-7}+(-x-2)\\\\ w(2)=(0.5)^{2-7}+(-2-2)$

Solving , we get,

$w(2)=(0.5)^{2-7}+(-2-2)\\\\ w(2)=(0.5)^{-5}+(-4)\\\\ w(2)=32-4=28$

Thus, the temperature of the metal after two hours is 28 Celsius.

Hence, Option (b) is correct.

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3 years ago

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