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balu736 [363]
3 years ago
14

If the mean of 2 3 x and 5 is 4,find x​

Mathematics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

the missing number is 6

Step-by-step explanation:

To find the mean, add up all the numbers and divide by the number of numbers

( 2+3+x+5) /4 = 4

Combine like terms

(10+x)/4 =4

Multiply each side by 4

10+x = 16

Subtract 10 from each side

x = 6

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please help!!! the study conducted was 6 days long: there was 72mm of plant food and it decreased an equal amount each day.
Anuta_ua [19.1K]

Answer:

f(x) = 72 - 12x

Step-by-step explanation:

No. of days of study = 6

Amount of food to use for the 6 days = 72 mm

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This would enable us derive a function for the amount of food remaining f(x), which can be expressed as a function of the number of days that have passed, (x).

Thus, we would have:

f(x) = 72 - 12x

Let's check if this equation expresses the relation of the function well.

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If we replace x in the equation we derived, we would get the same 60mm as the amount of food remaining.

If you try 2, 3, 4, 5 days, you'd get same thing.

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