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kirza4 [7]
3 years ago
5

There are between 24 and 40 students in a class.

Mathematics
2 answers:
Troyanec [42]3 years ago
8 0

Step-by-step explanation:

There are 12 boys and 21 girls for a total of 33 students

Explanation:

Since there aren’t going to be fractions of people we can just count up using the whole numbers in the ratio and then check if the sum is between 24 and 40.

Let’s begin:

4:7→4+7=11<24 not enough

8:14→8+14=22<24 not enough

12:21→12+21=33

24<33<40 in the correct range!

There are 12 boys and 21 girls for a total of 33 students

sergeinik [125]3 years ago
4 0

Answer:

33

Step-by-step explanation:

Find the total units of students in the class.

4 + 7 = 11 units

Try dividing 11 with numbers from 24 to 40, if one of them gives a whole number, it is the answer.

Multiples of 11:

11, 22, 33, 44

So it's 33 as it is between 24 to 40.

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Sarah earns a 5% commission for each house she sales. Write an equation that relates Sarah's total incomes (T), if she has a bas
jonny [76]

Answer:

T = 25000 + 0.05x

Step-by-step explanation:

Given

Salary = 25000

Commission = 5\%

Required

Write an equation when sales = x

The equation can be written as:

Total (T) = Salary + Commission * Sales

This gives

T = 25000 + 5\% * x

Convert percentage to decimal

T = 25000 + 0.05 * x

T = 25000 + 0.05x

7 0
3 years ago
Dr. Graham was curious as to whether memory is affected by position during study. Participants were randomly assigned to study a
lina2011 [118]

Answer:

Dependent variable: Memory

Independent variable: Position

Step-by-step explanation:

We are given the following in the question:

Dr. Graham was curious as to whether memory is affected by position during study.

He wants to check the effect of position(either laying down on a bed or sitting up at a desk) effects the memory(list of 50 words).

Dependent and independent variable:

  • Dependent variable is affected by the changes in the independent variable.
  • Dependent variable are also known as response variable.
  • Independent variables are the free variables.

For the given study

Dependent variable:

Memory that is determined by the recalling power of list of 50 words.

Independent variable:

Position that is either laying down on a bed or sitting up at a desk

3 0
3 years ago
Solve 2x+7=16 pls help meee​
Black_prince [1.1K]

Answer:

5.5

Step-by-step explanation:

2x+7=16

   -7   -7

2x=11

2x/2=11/2

x=5.5

6 0
3 years ago
Read 2 more answers
Please help this is due in 12 mins !!!?!?
MakcuM [25]
Answer: 3p = 1/2
( p + p + p ) = 1/2
8 0
3 years ago
4. Rhea obtained a CO-OP credit working at a computer store. They have now hired her for a summer job with
Harman [31]

Answer:

1. E = 8h + 0.05s

2. $2,800

3. please check explanations

Step-by-step explanation:

Firstly, we need an expression for what she earns.

The key to answering this is to know that 5% is same as 5/100 = 0.05

So , if her total sales is given as S, the amount she makes as commission would be 0.05s

So the Total earnings given that she works h hours per week and earns $8/h is $8h

So total earnings E = 8h + 0.05s

Now we want to get to total sales given she worked 15 hours last week and earned $260 in total.

What this means is that we have h and E and we want to find s for that week.

What we need to do is to plug the values into the equation we have defined above;

Thus;

260 = 8(15) + 0.05s

260 = 120 + 0.05s

0.05s = 260-120

0.05s = 140

s = 140/0.05

s = $2,800

I think employers offer commission to serve as a form of morale booster which helps to make their employees work better by sustaining their enthusiasm on the job and also augment their salaries

No, I do not think there are potential problems

8 0
3 years ago
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