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marysya [2.9K]
4 years ago
7

At the karate school, Class A has 8 students with an average age of 6 years. Class B has 12 students with an average age of 9 ye

ars. The classes combine for a group workout.
What is the average age of the combined classes?

Enter your answer as a decimal in the box.
Mathematics
2 answers:
Murrr4er [49]4 years ago
7 0

Answer: I took the test and the answer is 7.8

Good luck!

ELEN [110]4 years ago
3 0
IT IS 7.8 AND I  KNOW IT IS RIGHT
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The cost for Dana and Courtney's lunch is $24. If they want to leave a
sergij07 [2.7K]
<h3>Total cost of their lunch, including the tip is $ 27.6</h3>

<em><u>Solution:</u></em>

The cost for Dana and Courtney's lunch is $24

They want to leave a  15% tip

To find:  total cost of their lunch, including the tip

<em><u>Find the tip amount</u></em>

Tip amount = 15 % of 24

Tip\ amount = \frac{15}{100} \times 24\\\\Tip\ amount = 0.15 \times 24\\\\Tip\ amount = 3.6

<em><u>what is the total cost of their lunch, including the tip?</u></em>

Total cost = cost of lunch + tip amount

Total cost = 24 + 3.6

Total cost = 27.6

Thus total cost of their lunch, including the tip is $ 27.6

7 0
3 years ago
Chuy wants to buy a new television. The television costs $1,350. Chuy decides to save the same amount of money each week, for 27
Korvikt [17]

Answer: C: Chuy will save more than he needs and will meet his goal at the end of 27 weeks.

Step-by-step explanation: Divide the amount of money saved, $440, by the number of weeks, 8.

440/8 = $55.

This means $55 is the amount of money Chuy saves every week.

Multiply $55 by the number of weeks Chuy plans to save money, 27.

55 x 27 = 1,485.

Since the television costs $1,350 dollars, Chuy will save more than he needs and will meet his goal in less than 27 weeks.

4 0
3 years ago
If you know how to solve this, Please answer it. Thank You
r-ruslan [8.4K]

6.5 / 12 = x / 24

x = 6.5 × 24 / 12

x = 6.5 × 2

x = 13

8 0
3 years ago
Read 2 more answers
If g(n) = n +2, find g(1)
AlexFokin [52]

Answer:

3

Step-by-step explanation:

because n=1 and you plug it in you get 3

4 0
4 years ago
Solve the inequality and graph the solution on a number line
FrozenT [24]

Answer:

y\leq -1/3

The graph in the attached figure

Step-by-step explanation:

we have

-3(5y-4)\geq 17

Applying the distributive property on the left side

-15y+12\geq 17

Subtract 12 both sides

-15y\geq 17-12

-15y\geq 5

Multiply by -1 both sides

15y\leq -5

Divide by 15 both sides

y\leq -5/15

Simplify

y\leq -1/3

The solution is the interval -------> (-∞, -1/3]

All real number less than -1/3

In a number line the solution is the shaded area down of y=-1/3 (close circle)

The graph is the attached figure

7 0
3 years ago
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