Katie spent m minutes practicing her trumpet on

Mathematics

1 answer:

fgiga [73]1 year ago

7 0

Answer:

7m minutes

Step-by-step explanation:

3 days of practice = Monday + Tuesday + Wednesday
Monday = m
Tuesday = m + 6
Wednesday = 5m - 6

<u>Solution:</u>

3 days of practice = Monday + Tuesday + Wednesday
=> 3 days of practice = m + m + 6 + 5m - 6

[Simplifying]

=> 3 days of practice = 7m - 6 + 6

[Final Answer]

=> 3 days of practice = 7m

Hence, the total number of minutes she practiced over the course of the three days is 7m minutes.

You might be interested in

A normal random variable with mean and standard deviationboth equal to 10 degrees Celsius. What is the probability that the temp

Korvikt [17]

Answer:

0.57142

Step-by-step explanation:

A normal random variable with mean and standard deviation both equal to 10 degrees Celsius. What is the probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit?

We are told that the Mean and Standard deviation = 10°C

We convert to Fahrenheit

(10°C × 9/5) + 32 = 50°F

Hence, we solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 59 °F

μ is the population mean = 50 °F

σ is the population standard deviation = 50 °F

z = 59 - 50/50

z = 0.18

Probability value from Z-Table:

P(x ≤59) = 0.57142

The probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit

is 0.57142

4 0

2 years ago

What’s the answer (number 5)

sineoko [7]

80 x 3/10 = 240/10 = 24 times

6 0

2 years ago

Which attribute matches the given triangle? Column A Column B 1. isosceles triangle 2. obtuse triangle 3. equilateral triangle 4

polet [3.4K]

Isosceles - Has at least two equal sides. (B)
Obtuse Triangle - Must have an obtuse angle. (D)
Equilateral Triangle - All sides should be equal. (Missing an answer?)
Right Triangle -Must include a 90 degree angle. (A)
Scalene Triangle - Has NO equal sides. (C)

Tell me if this helped.

6 0

3 years ago

I need help fast please!!

kaheart [24]

Solution set is: ( $7,\frac{13}{3}$ )