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3 years ago

What is the solution set to the following system?

Mathematics

1 answer:

elena-s [515]3 years ago

3 0

The correct answer is C
3+ 0 is 3
3^2 + 0 is 9

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Luis wants to buy a skateboard that usually sells for $79.74. All merchandise is discounted by 12%. What is the total cost of th

eduard

Answer:

75.26

Step-by-step explanation:

Most sales taxes work by not being calculated until cash in some form changes hands. So you take the discount first and then you add the sales tax on the new amount.

Take the discount first

Original cost = 79.74

Discount amount = 79.74 * 12% = 79.74 * 12/100 = 9.57

New price = 79.74 - 9.57 = 70.17

Now you are ready to add on the sales tax

70.17 * 7.25/100 = 5.09

The total is 70.17 + 5.09 = 75.26

7 0

3 years ago

There is 60% chance that it will rain today. If it rains, the probability of watching a movie is 0.5. But, if it does not rain t

agasfer [191]

Applying the given probabilities, it is found that there is a 0.42 = 42% probability of watching a movie today.

These following <em>probabilities </em>involve a movie being watched today:

0.5 of 0.6(if it rains today).

0.3 of 1 - 0.6 = 0.4(if it does not rain today).

Hence, adding them:

$p = 0.5(0.6) + 0.3(0.4) = 0.3 + 0.12 = 0.42$

0.42 = 42% probability of watching a movie today.

A similar problem is given at brainly.com/question/14398287

5 0

3 years ago

Kim earns $48 washing 8 dogs. At this rate, how much does Kim earn washing 7 dogs?

dexar [7]

Answer:42 dollars

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A population of a particular yeast cell develops with a constant relative growth rate of 0.4225 per hour. The initial population

Ksju [112]

Answer: The population after 3 hours is 13.9 mill.

Step-by-step explanation:

When we have an exponential with:

A = initial population.

r = constant relative growth rate:

t = time.

The function that models this is:

P(t) = A*e^(k*t)

In this case we know that:

A = 3.9 mill.

r = 0.4225 1.

Then the function that models the population of this yeast cell is:

P(t) = (3.9 mill)*e^(0.4225*t)

where t represents the time in hours.

Then if we want to know the population after 3 hours, we should replace t by 3.

P(3) = (3.9 mill)*e^(0.4225*3) = 13.85 mill.

And we want to round our answer to one decimal place, then we must look at the second decimal place, we can see that is a 5, so we should round up.

The population after 3 hours is 13.9 mill.

8 0

4 years ago

Right triangle LMN has vertices L(7, –3), M(7, –8), and

prohojiy [21]

We are given the vertices of the triangle with their respective coordinates. For the vertex L, the translated coordinates is also given. So, from the original coordinates of L and the new coordinates, we can get the rule used during translation:(7, -3) -> (7 + a, -3 + b) = (-1, 8)7 + a = -1a = -8
-3 + b = 8b = 11
Therefore, the answer is:(x, y) → (x – 8, y + 11)

6 0

3 years ago

Read 2 more answers