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lianna [129]
3 years ago
7

in a set of 5 numbers the average of two is 12 the average of the other 3 is 7 what is the average of all five numbers. (fractio

n or whole number)​
Mathematics
1 answer:
UNO [17]3 years ago
3 0

Answer:

The average of all 5 numbers is  9

Step-by-step explanation:

Two of the numbers average 12. That means that their total is 2*12 = 24

Three of the other numbers average 7. That means that their total is 7*3 = 21

The total score for the 5 numbers is 24 + 21 = 45

The average for all 5 numbers is 45/5 = 9

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NEED ANSWERED ASAP PLEASE<br> sin(0)= -4 sqrt 29 / 29
VladimirAG [237]

Answer:

Is - 4

Step-by-step explanation:

29/29  cancel it out

so it will leave -4 out

3 0
3 years ago
Total area of two room <br> Help due soon (no link)
AlladinOne [14]
The answer is B, 2136

Explanation:
48-28 = 20. Now 20 times 20 equals 400, now remember that number.
Now 28 times 62 equals 1,736.
Now back to 400.
400+1736 equals 2,136.

Hope I helped you, please tell me if I am correct or not.

Enjoy your day!
:)
4 0
3 years ago
how many pounds of nuts selling for $9 per lb and raisins selling for $3 per lb should a person combine to obtain 60 lb of a tra
marta [7]
Let n be the number of lbs of nuts.
Let r be the number of lbs of raisins.
9n + 3r = 60 * 5 = 300 .............(1)
n + r = 60
n = 60 - r ...............(2)
Plugging the expression for n in (2) into (1) we get:
9(60 - r) + 3r = 300
which expands to:
540 - 9r + 3r = 300 .............(3)
Simplifying and rearranging (3) we get:
-6r = -240
Therefore r, the weight of raisins = 40 lbs
and the weight of nuts is 60 - 40 = 20 lbs
8 0
3 years ago
When rewriting y = 2x + 1 in function notation, what do you replace with f(x)?
zmey [24]
You replace the y with f(x)
So it becomes f(x)=2x+1
6 0
3 years ago
Read 2 more answers
Determine the measure of the unknown angle in each triangle​
devlian [24]

Answer:

78 degrees

Step-by-step explanation:

If you look at it, 2 of the angels are the same- those angels are A and B- the angel we are looking for. Angel A is 78 degrees and if angel A and angel B are equal then angel B is also 78 degrees.

5 0
3 years ago
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