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3 years ago

A store sells a twelve pack of markers for $20. How much does it cost for one marker?

Mathematics

2 answers:

Elenna [48]3 years ago

7 0

Answer:

$1.67

Step-by-step explanation:

Take the total cost and divide by the number of markers

$20/12 =1.6666666

Since we are dealing with money we round to the nearest cent

$1.67

nlexa [21]3 years ago

5 0

Answer:

The cost of one marker is$1.67

Step-by-step explanation:

$20/12=1.666667

1.666667 is rounded to $1.67 because we are working with money.

That is why $20 divided by 12 is $1.67.

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Twice the sum of a number and 3 is 20.

tamaranim1 [39]

Answer:

true

Step-by-step explanation:

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Step-by-step explanation: LORD HAVE MERCY

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2 years ago

4x+12=−2x<br><br> i need help my stoopid math teacher is mean...

ehidna [41]

Answer:

-2=x

Step-by-step explanation:

4x+12=-2x

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3 years ago

Explain, with a test, why the two triangles in each figure are similar. Find the

frutty [35]

Answer:

x = 3, y = 6

Step-by-step explanation:

In the figure attached,

If ΔADE and ΔABC are similar triangles, their corresponding sides will be in the same ratio.

By this property,

$\frac{AB}{AD}=\frac{AC}{AE}=\frac{BC}{DE}$

$\frac{AB}{AD}=\frac{AC}{AE}$

$\frac{AD+BD}{AD}=\frac{AE+EC}{AE}$

$\frac{3}{2}=\frac{x+1.5}{x}$

3x = 2x + 3

3x - 2x = 3

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Similarly, $\frac{AB}{AD}=\frac{BC}{DE}$

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7 0

3 years ago

A bag had 7 orange rocks , 6 green rock , 1 white rock ,7 black rocks , and 2 yellow you randomly pull a rock from the bag ,keep

daser333 [38]

Answer:

$Probability = \frac{7}{253}$

Step-by-step explanation:

Given

$Orange = 7$

$Green = 6$

$White = 1$

$Black = 7$

$Yellow = 2$

Required

Probability of selecting a yellow then orange rock

From the question, we understand that the probability is that of without replacement.

Since the yellow, is first picked.

We need to determine the probability of picking a yellow rock, first.

$P(Yellow) = \frac{n(Yellow)}{Total}$

$P(Yellow) = \frac{2}{7 + 6 + 1 + 7 + 2}$

$P(Yellow) = \frac{2}{23}$

The rock has reduced by 1;

Next is to determine the probability of picking an orange rock

$P(Orange) = \frac{n(Orange)}{Total - 1}$

$P(Orange) = \frac{7}{7 + 6 + 1 + 7 + 2- 1}$

$P(Orange) = \frac{7}{22}$

The required probability is calculated as thus:

$Probability = P(Yellow) * P(Orange)$

$Probability = \frac{2}{23} * \frac{7}{22}$

$Probability = \frac{14}{506}$

$Probability = \frac{7}{253}$

4 0

3 years ago