Ask question

Ask question

All categories

3 years ago

12

Need help plz it’s only one question!!!

2 answers:

koban [17]3 years ago

8 0

Answer:

-12.5

Step-by-step explanation:

If you do 2.50*5 (because Ms. Ortiz borrows $2.50 every day for 5 days) it equals 12.5, and since it's how much she owes, you have to make it negative, so it's -12.50 or she owes $12.50 (the first one if you are supposed to have the answer be negative, the second one if you have to have it in money form).

aniked [119]3 years ago

5 0

Answer:

owes $12.50

Step-by-step explanation:

2.5*5

=12.5

You might be interested in

Are the lengths changing in a linear fashion in the listing above? Perry's hot tub

Anit [1.1K]

Answer:

there isnt anything there but sure yes they are

Step-by-step explanation:

4 0

3 years ago

Someone please help me thank you

Igoryamba

Answer:

x = - 1

Step-by-step explanation:

Given

4x = x^2 - 5 Transfer 4x to the right side.

Solution

x^2 - 4x - 5 = 0 Factor

(x - 5)(x + 1)

You want the negative solution. That means that the middle sign must be plus.

x + 1 = 0 Subtract 10 from both sides

x = - 1 Ten on the left disappears by the subtraction process.

Is that correct?

4x = x^2 - 5

x = - 10

4*(-1) = (-1)^2 - 5

-4 = ? 1 - 5

-4 = - 4

and it does work.

8 0

3 years ago

If the pet store had 10 more birds the number of dogs would be double the number of birds what numbers should be on the scale

frosja888 [35]

If there were 10 dogs then there would be 20 birds

4 0

3 years ago

Read 2 more answers

Find the product of 51 and -2.5

Elodia [21]

Answer: -127.5

Hope this helps!

3 0

4 years ago

Read 2 more answers

The temperature of coffee served at a restaurant is normally distributed with an average temperature of 160 degrees Fahrenheit a

posledela

Answer:

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 160 degrees

Standard Deviation, σ = 5.4 degrees

We are given that the distribution of temperature of coffee is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.2

$P( X < x) = P( z < \displaystyle\frac{x - 160}{5.4})=0.2$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 160}{5.4} = -0.842\\\\x = 155.4532$

Thus,

$P_{20}=155.4532$

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

7 0

3 years ago