MATHEMATICS
MIDDLE SCHOOL

Answer:

MIDDLE SCHOOL

(PLEASE ANSWER!!) a college student completed some courses worth 4 credits and some courses worth 3 credits. the student earned a total of 59 credits after completing 18 courses. how many courses worth 3 credits did the student complete?

The college student took 13 courses of 3 credit hours.

Step-by-step explanation:

Given,

Total credits = 59

Total courses = 18

Let,

Number of 3 credit hour courses = x

Number of 4 credit hour courses = y

According to given statement;

x+y=18 Eqn 1

3x+4y=59 Eqn 2

We will eliminate y to find the number of 3 credit hour courses, therefore,

Multiplying Eqn 1 by 4

Subtracting Eqn 2 from Eqn 3

The college student took 13 courses of 3 credit hours.

Keywords: linear equation, subtraction

Learn more about linear equations at:

- brainly.com/question/10708697
- brainly.com/question/10710410

#LearnwithBrainly

Answer:

13

Step-by-step explanation:

MIDDLE SCHOOL

How do u solve y pluse 4 pluse 3(y pluse 2)

Y + 4 + 3(y+2) first distribute the 3

y + 4 + 3y + 6 then add like terms

4y + 10

therefore your answer should be 4y + 10

y + 4 + 3y + 6 then add like terms

4y + 10

therefore your answer should be 4y + 10

COLLEGE

SOLUTION: if you know the names of the remaining 5 students in the spelling bee, what is the probability of randomly selecting an order and getting the order that is used in the spelling bee

There are

possible arrangements of 5 students. So, if you pick a particular one, you'll have a probability of 1/120 to guess the correct one.

HIGH SCHOOL

People who are physically active should increase the daily amount of water they drink to 2/3 ounces per pound of body weight. how much should a 245 pound football player drink per day? A 1,470 ounces of water

B 163 ounces of water

C 163 1/3 ounces of water

D no water, football players only drink gatorade

245*2/3=

245*2 =490/3 =163.33 = 163 1/3 ounces

MIDDLE SCHOOL

What is the area of the rectangle below

Where is the rectangle

COLLEGE

The stock price for International Business Machines (IBM) historically has followed an approximately normal distribution (when adjusting for inflation) with a mean of $188.876 and standard deviation of $4.6412. What is the probability that on a selected day the stock price is between $186.26 and 192.47

Answer:

0.494 is the probability that on a selected day the stock price is between $186.26 and $192.47.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $188.876

Standard Deviation, σ = $4.6412

We are given that the distribution of stock price is a bell shaped distribution that is a normal distribution.

Formula:

P(stock price is between $186.26 and $192.47)

0.494 is the probability that on a selected day the stock price is between $186.26 and $192.47.

MIDDLE SCHOOL

Solve |x|=11

A. {-11}

B. {11}

C. {-11, 11}

Answer:

the answe is 11

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

HIGH SCHOOL

ASAP GEOMETRY PLZZZZ... What is the equation of the line that is perpendicular to the given line and has an x-intercept of 6?

y = –x + 8

y = –x + 6

y = x – 8

y = x – 6

Answer:

B or D, depending on the given line

Step-by-step explanation:

The x-intercept is when y = 0. So, we look for an equation that when y = 0, x = 6. A and C can be ignored because 8 - 6 ≠ 0.

B) y = -x + 6

Substitute: 0 = -6 + 6

Simplify: 0 = 0

D) y = x - 6 --> 0 = 6 - 6 --> 0 = 0

These both have the x-intercept of 6, so B and D are possible answers.

Since I am not given the slope of the given line, I can't fully answer the question, but I can tell you that If the slope of the original line is -1, then the slope of the perpendicular line is 1, and vise versa. (Perpendicular line's slope = negative reciprocal)

HIGH SCHOOL

A circle has a circumference of 81.64cm. What is its Radius?