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3 years ago

How much is: 4(2c+3) =28

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

5 0

Answer:

c=2

Step-by-step explanation:

4(2(2) + 3)

4(4 + 3)

4(7)

Tju [1.3M]3 years ago

4 0

Step-by-step explanation:

hope this helps. if you have any questions, don't hesitate to message. :)

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A juice stand in Montreal sells a quart of orange juice for 4.40CAN. If 1USD = 1.06CAN and 4 cups = 1 quart, how much will one c

Arte-miy333 [17]

Answer:

A cup of juice will cost 1.04 US dollars

Step-by-step explanation:

Here, we want to know the cost of one cup of juice in US dollars.

The cost of a quart of juice is Canada is 4.40CAN

now, since there are 4 cups in a quart, the cost of a cup of juice will be 4.40/4 = 1.10 CAN

Moving on;

We are told that 1 USD = 1.06 CAN ;

thus x usd = 1.10 CAN

1 * 1.10 = x * 1.06

x = 1.10/1.06

x = 1.037 which is approximately 1.04 USD

5 0

3 years ago

Based on past experience, a telemarketing firm has found that calls to prospective customers take an average of 2.0 minutes, wit

xenn [34]

Answer: Our required probability would be 0.9641.

Step-by-step explanation:

Since we have given that

Number of hours he works a day = 8

So, Number of minutes he worked in a day = $8\times 60=480\ minutes$

Number of calls = 220

So, Average $=\bar{x}=\dfrac{480}{220}=2.18\ minutes$

Standard deviation $=s=\dfrac{\sigma}{\sqrt{n}}=\dfrac{1.5}{\sqrt{220}}=0.10$

Mean = μ = 2.0 minutes

Standard deviation = σ = 1.5 minutes

Using the normal distribution, we get that

$z=\dfrac{\bar{x}-\mu}{s}\\\\z=\dfrac{2.18-2.0}{0.10}\\\\z=1.8$

So, the probability that Albert will meet or exceed his quota would be

$P(X\leq 2.18)=P(z\leq 1.8)=0.9641$

Hence, our required probability would be 0.9641.

6 0

3 years ago

- Name a regular polygon with an interior angle of 120 degrees<br>

WARRIOR [948]

Answer:

Hexagon

Step-by-step explanation:

Answer: If an interior angle of a regular polygon measures 120°, it has 6 sides (Hexagon).

5 0

3 years ago

U= 2a - 2. solve for a

Sonja [21]

Answer: a = $\frac{u+2}{2}$

We want to isolate a. Add both sides by 2. Then we get u + 2 = 2a. To get just a, we can divide by 2 to get (u+2)/2.

Hope that helped,

-sirswagger21

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3 years ago

Read 2 more answers

SEP Use Mathematics: The Pacific Plate moves to the northwest at an average rate of 10 cm per year. Hawaii is in the middle of t

hammer [34]

Answer:ea sorts

Step-by-step explanation:p

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2 years ago