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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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Please help me
Flauer [41]
Probability of heads or tails is .5
so you do (.5)^3 and you get D = 0.125
5 0
3 years ago
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Pam is placing a bird feeder in a tree in her back yard. She first needs to put up a 10-inch wooden platform in the fork of two
saul85 [17]

Answer:

x = \frac{10}{\tan(52^o)}

Step-by-step explanation:

Given

See attachment for illustration

Required

Equation to find x

The relationship between angle 52^o and side lengths x and 10 inches is by tangent formula which is given by:

\tan(\theta) = \frac{Opposite}{Adjacent}

So, we have:

\tan(52^o) = \frac{10}{x}

Make x the subject

x = \frac{10}{\tan(52^o)}

4 0
3 years ago
A set of logically interrelated concepts, statements, propositions, and definitions supported by data, testing, and verification
PolarNik [594]

Answer:

Theory

Step-by-step explanation:

The term theory is associated to a "set of logical interrelated concepts, statements, propositions, and definitions", who are "derived from philosophical and logical beliefs from scientific data and from which questions and hypotheses can be deduced, characterize, tested and verified".

So then we can conclude that :

A set of logically interrelated concepts, statements, propositions, and definitions supported by data, testing, and verification to account for or characterize some phenomena is called theory.

7 0
3 years ago
For t = 2, 13t - 2t is equal to
jenyasd209 [6]

Answer:

t=22

Step-by-step explanation:

13x2-2x2

26-4

22

4 0
4 years ago
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2 qts for every 50 gal of water i just want to use 15 gal of water so how much do i use
Papessa [141]

The amount of qts to use for 15 gals is 0.6qts

Proportion and ratio

Ratio are written as quotient of 2 integers

Given that 2 qts for every 50 gal of water, this is written as;

2qts = 50 gals

In order to calculate for 15gal, we will have:

x = 15gals

Take the ratio

2/x = 50/15

50x = 30

x = 3/5

x = 0.6qts

Hence the amount of qts to use for 15 gals is 0.6qts

Learn more on qts to gallons here: brainly.com/question/466814

#SPJ1

7 0
3 years ago
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