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3 years ago

Tom bought a soft drink for 3 dollars and 6 candy bars he spent a total of 21 dollars how much did each candy bar cost

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

we know that the soft drink was 3 dollars so we can subtract that from the total ($21) which gives you $18

then we know that the 6 candy bars cost $18 in total so we can divide 18 by 6 to get the unit price which gives you $3

stiv31 [10]3 years ago

5 0

Answer:

Each candy bar was $3

Step-by-step explanation:

You subtract the 3 dollar soda from the total to find out how much he spent on candy bars all together.Then, you divide that number by how many candy bars he purchased, 6 to get your answer, $3

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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:

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

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

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

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

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3 years ago

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lara [203]

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Step-by-step explanation:

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Scorpion4ik [409]

4(2x-5)
8x-20

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xxMikexx [17]

Answer:

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Step-by-step explanation:

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