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blondinia [14]
3 years ago
6

If x + y =6, y +z = 7 and z + x =9, what is the average (arithmetic mean) of x,y and z?

Mathematics
1 answer:
nadya68 [22]3 years ago
8 0

Answer:

\frac{22}{3}

Step-by-step explanation:

x + y + y + z + z + x = 2x + 2y + 2z = 22

x + y + z = 22

22 ÷ 3 = \frac{22}{3}

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Devon invests in an account for 10 years that pays 2.15% compound interest annually. He uses the expression P(1+r)t to find the
zheka24 [161]

Answer:

FV= $4,948.16

Step-by-step explanation:

Giving the following information:

Number of periods (n)= 10

Interest rate (i)= 2.15% compound interest annually

Present value (PV)= 4,000

<u>To calculate the future value, we need to use the following formula:</u>

FV= PV*(1+i)^n

FV= 4,000*(1.0215^10)

FV= $4,948.16

7 0
2 years ago
What is the unit rate for the cost of a salad at the salad bar?
Lera25 [3.4K]

Answer:

C.) $2.00 per pound

Hope This Helps!   Have A Nice Day!

8 0
3 years ago
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A pet store can put no more then 5 fish in each tank. What is the least number of tanks the store needs to hold 354 fish?
Vlada [557]
70.8 fish tanks. Because you have to divide 354 by 5.
8 0
3 years ago
Find the coordinates of the midpoint of (-8,-3) and (2,-5)
Jet001 [13]
The midpoint is just the average of the coordinates of the endpoints.

((-8+2)/2, (-3-5)/2)

(-6/2, -8/2)

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8 0
3 years ago
Write the point-slope form of an equation of the line through the points (6,-1) and (5,-7).
anyanavicka [17]

Answer:

slope of the line containing the given points (6,-1) AND (5,-7) is 6

point- slope form of the equation is

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Step-by-step explanation:

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(y-y1) = m ( x - x1)

(y+1 ) = 6 ( x-6)

6 0
2 years ago
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