All categories

3 years ago

Kylie is planning to provide online science and Chinese language tutoring sessions. The sciences

Mathematics

1 answer:

Ivahew [28]3 years ago

8 0

Answer:

120 ≤ 20c + 40s

Step-by-step explanation:

(Assuming her name is Kylie, who is giving 40 minute science sessions and 20 minute Chinese sessions.)

The unit for time will be minutes.

Write an equation for time needed for science sessions

40s = t

Write an equation for time needed for Chinese sessions

20c = t

Combine the two equations for the total time.

20c + 40s = total time

She does not want the total time to be more than two hours.

Convert two hours to minutes. There are 60 minutes in an hour.

2h * 60mins = 120 mins

Therefore t ≤ 120. Include this into the equation.

120 ≤ 20c + 40s

You might be interested in

The representation that is used to display the spread of the data is

Vsevolod [243]

Answer:

The spread in data is the measure of how far the numbers in a data set are away from the mean or the median. ... You can also find the spread in the data set by using the interquartile range, which is a value that is the difference between the upper quartile value and the lower quartile value.

Step-by-step explanation:

8 0

3 years ago

Evaluate 32 + (7 − 2) ⋅ 4 − 6 over 3.

tia_tia [17]

Parenthesis statements are evaluated first such that 7-2 Is 5.
From left to right, multiplication and division are evaluated: 5×4=20 6/3 =2
Finally addition and subtraction equating finally to: 32 + 20 - 2 = 50

7 0

3 years ago

Determine the fraction of total interest owed using the rule of 78. After the six month of a 12 month loan, the numerator is: {(

Dima020 [189]

Answer:

The fraction of total interest owed is $\frac{57}{78}$

The value of it to the nearest tenth is 73.1%

Step-by-step explanation:

Let us solve it using the rule of 78

∵ The loan = 12 month

∵ The numerator is after 6 month

- Substitute n by 1 in each bracket

∴ The numerator = {(1 + 11) + (1 + 10) + (1 + 9) + (1 + 8) + (1 + 7) + (1 + 6)}

∴ The numerator = {12 + 11 + 10 + 9 + 8 + 7}

∴ The numerator = {57}

∴ The numerator of the fraction is 57

∵ The denominator = {(n) + (n + 1) + (n + 2) + .......... + (n + 11)}

- substitute n by 1 in each bracket

∴ The denominator = {1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12}

∴ The denominator = {78}

∴ The denominator of the fraction is 78

The fraction of total interest owed is $\frac{57}{78}$

Now find the value of the fraction

∵ The fraction = $\frac{57}{78}$

∴ Its value = 0.7307692308 × 100%

∴ Its value = 73.07692308%

- Round it to the nearest tenth

∴ Its value = 73.1%

The value of it to the nearest tenth is 73.1%

5 0

3 years ago

The chocolate chip recipe calls f6 3 1/3 cup9 of milk we only have 1 2/3 cups at home how much more milk do we need

hram777 [196]

Answer:

2 1/3

Step-by-step explanation:

you have to take away 3 1/4 and 1 2/3

8 0

3 years ago

What is the square root of 4/16

Elis [28]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

Step 1: Find the square root

$\sqrt{\frac{4}{16} }$

$\frac{\sqrt{4} }{\sqrt{16} }$

$\frac{2}{4}$

$\frac{1}{2}$

Answer: $\frac{1}{2}$

3 0

3 years ago