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3 years ago

What is the algebraic expression for the following word phrase: the quotient of x and 6y?

Mathematics

1 answer:

DENIUS [597]3 years ago

7 0

Answer:

x / 6y

Step by step explanation:

A quotient is the answer to a division problem, so write it as a division problem.

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The mean number of students in a classroom at school a is 32.5 and there are 25 classrooms. The mean number of students at schoo

Airida [17]

We have given three school there, School A, School B and School C.

We are going to use following formula.

Total number of student in a school = Mean of number of student × Number of classrooms.

School A

Mean of students in School A = 32.5.

Number of classroom in School A = 25.

Number of students in School A = Mean × number of classrooms = 32.5×25 = 812.5

School B

Mean of students in School B = 29.6.

Number of classroom in School B = 12.

Number of students in School B = Mean × number of classrooms = 29.6×12 = 355.2

School C

Mean of students in School C = 15.3.

Number of classroom in School C = 10.

Number of students in School C = Mean × number of classrooms = 15.3×10 = 153.

Total sum of number of classes in all schools = 25+12+10 = 47.

Total sum of all students in all schools = 812.5 +355.2 +153 = 1320.7 .

The mean number of students per classroom for all the schools combined =

$\frac{Total \ sum \ of \ all \ students \ in \ all \ schools}{Total \ sum \ of \ number \ of \ classes \ in \ all \ schools}$

= $\frac{1320.7}{47}$ = 28.1

The mean number of students per classroom for all the schools combined= 28.1

4 0

3 years ago

A red kangaroo hops at an average speed of 20km per hour. How fast is this in meters per minute?

masya89 [10]

Answer:

333.3 meters per minute

Step-by-step explanation:

The best way to solve this problem is using dimensional anaysis. First, we write out our starting units, that being 20km/1hr. We have to keep in mind that we want to change the kilometers to meters and the hours to minutes.

$\frac{20km}{1hr}$

We know that there are 1000 meters in 1 kilometer. We add this to the dimensional analysis as 1000m/1km. We write it as this because we want the kilometers to cancel each other out. We only want the meters.

$= \frac{20km}{1hr} *\frac{1000m}{1km} ...$

We also know that 1 hour is 60 minutes. We add this to the analysis as well so that the hours cancel each other.

$= \frac{20km}{1hr} *\frac{1000m}{1km} * \frac{1hr}{60min}$

We now solve this expression. Since both the kilometers and the hours cancel out, we have meters per minute as our unit. All that's left are the numbers.

= (20*1000*1)/(1*1*60) m/min

= 333.3 meters per minute

8 0

3 years ago

Which description does NOT guarantee that a quadrilateral is a parallelogram

beks73 [17]

It depends on what your looking at

3 0

4 years ago

Giving brainliest if answer

Sedbober [7]

Answer:

4.9

Step-by-step explanation:

$70 times 7% = 4.9 (You can round it if you want)

5 0

3 years ago

Read 2 more answers

9. Write an equation parallel to y = 2x + 4that passes through the point (-4,-1).

sasho [114]

Answer:y=2x+7

Step-by-step explanation:

so for the new equation, we know the slope is going to be the same (because its parallel) so for starters we have y=2x+b so now in order to find b (the y-intercept) we have to plug the point into the equation. So it would look like -1=2(-4)+b and then you solve for b and get 7 for b. SO the final answer is y=2x+7.

6 0

3 years ago