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kenny6666 [7]
3 years ago
11

A letter that represents an unknown number is a(n)

Mathematics
1 answer:
marishachu [46]3 years ago
5 0
A variable represents an unknown number
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If f(x)=x-1/3 and g(x)=3x+1, what is (f*g)(x) 3x+1 x-3
crimeas [40]
This is a composite.  Another way to write them is f(g(x)).  Take the function g(x) and stick it in for x in f(x).  Like this: f(g(x))= \frac{(3x+1)-1}{3}.  But we aren't done cuz there's some simplifying there to do.  f(g(x))= \frac{3x}{3} and canceling out the 3's we get just a simple x as our answer.  The choice is the last one above as your answer.
3 0
2 years ago
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10 watermelons have an average weight of 4.3 pounds and 5 pumpkins have an average weight of 3.4 pounds. What is the average wei
bagirrra123 [75]
Since the average is the sum divided by the count, the sum is the average times the count.

So the sum of the weights of the watermelons is 10(4.3)=43 pounds.

The sum of the weights of the pumpkins are 5(3.4)=17 pounds

The sum of the weight of the fruits is 43+17=60 pounds

Dividing by 15 fruits gives an average item weight of 60/15 = 4 pounds

6 0
3 years ago
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Pls help me answer this as fast as fast possible!!!<br>​
Andrews [41]

Answer:

B

Step-by-step explanation:

y = 5x

check your work by plugging in the values

y = 5(1)

y = 5 yes

y = 5(2)

y = 10 yes

y = 5(3)

y = 15 yes

y = 5(4)

y = 20 yes

5 0
2 years ago
In November, the price of a GizmoPhone was double the price in March. In December, the price was $57, which was $29 less than th
ludmilkaskok [199]
The answer is 43 when you add 29 back to 57 then divide by 2
6 0
3 years ago
What is 14 feet in inches
Finger [1]
14 feet is 168 inches. To get this, I knew that there were 12 inches in one foot. If there are 14 feet, you will have to multiply 14 by 12. The answer, therefore, is 168 inches!

I hoped this helped you!
6 0
3 years ago
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