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ira [324]
3 years ago
5

Urgent please!!! I really don’t understand it, tysm to anyone who can answer thissss :))))

Mathematics
1 answer:
Vikki [24]3 years ago
6 0

Answer:

  • (ax + by + cz)/(a + b + c)

Step-by-step explanation:

  • Average = Sum / Number

<u>In terms of the scores we calculate the sum as:</u>

  • ax + by + cz

<u>The number is the sum of the frequencies:</u>

  • a + b + c

<u>Mean average score is:</u>

  • (ax + by + cz)/(a + b + c)
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saul85 [17]
It’s the vertical line on the graph
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Write each fraction or mixed number as a decimal. Use bar notation if needed
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There you good luck with everything

7 0
3 years ago
What is equivalent to 3 radical 8
liq [111]

Answer:

C. 8^x/3

Step-by-step explanation:

According to algebraic principles, if n is the root of a number, then that number to the power of 1/n is equal to it. This would mean that n√a = a^1/n.

This would mean that 3√8 = 8^1/3. When there is a power added to a radical expression such as this, that power will go on the denominator. So (3√8)^2 for example is equal to 8^2/3, and in your case, (3√8)^x = 8^x/3

looking back on the fact that this was added 2 days ago i dont think this helped on your quiz

6 0
4 years ago
HELPP PLEASEEEE ANYONE!!
Wewaii [24]

Answer:

kathryn= 6 years old

her mother= 38 years old

Step-by-step explanation:

kathryn=x

mother= x²+2

x²+2 +x=44

x=6

kathryn= 6 years old

her mother= 38 years old

4 0
3 years ago
Renna pushed the button for the elevator to go up, but it would not move. The weight limit for the elevator is 450 kilograms, bu
Marina CMI [18]
First we should figure out how much over the weight limit the passengers are. We can find this by 750-450 which is 300. The amount of weight that needs to get off the elevator is 300 kilograms. Then, we know that each passenger weighs 70 kilograms. We can represent this as 70p.The inequality is 70p \geq 300. Then we can solve by dividing both sides of the inequality by 70. We get p \geq 4.28... Since people only come in whole numbers, and it has to be greater than 4.28, the number of excess passengers is 5.

Hope this helped!
8 0
3 years ago
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