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grandymaker [24]
2 years ago
14

8z-7=3z-7 5z how do you solve?

Mathematics
1 answer:
gladu [14]2 years ago
6 0
8z-7=3z-7
-3z -3z

5z-7= -7
+7 +7

*5z=0
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Explain how you know the values of the digits in number 58
NeTakaya
The 5 is in the tens spot and the 8 is in the ones.
Look at chart. Plug in an 8 where it says ones, and the 5 where it says tens. Yeah?

3 0
2 years ago
The population standard deviation of the numbers 3, 8, 12, 17, and 25 is 7.563 correct to 3 decimal places. what happens if each
user100 [1]
Let's figure this out as though we have no idea what the answer would be.

Step One
Find the new five numbers.
3*3, 8*3, 12*3, 17*3, 25*3
9 , 24 , 36, 51, 75

Step 2
Find the average
(9 + 24 + 36 + 51 + 75)/5 = 195/5 = 39

Step 3
Subtract the individual numbers from the average
(39 - 9) = 30
(39 -24) = 15
(39 - 36) = 3
(39 - 51) = - 12
(39 - 75) = -36

Step 4 
Square the results from Step 3
30^2 = 900
15^2 = 225
3^2 = 9
(-12)^2 = 144
(-36)^2 = 1296

Step 5
Take the average of the results from step 4
(900 + 225 + 9 + 144 + 1296)/5
2574 / 5 = 514.8

Step 6
Take the square root of the result from step 5
deviation = sqrt(514.8)
deviation = 22.689

Step seven 
Compare the two standard deviations.
s2/s1 = 22.689 / 7.563 = 3

Conclusion
If you are given 1 set of numbers to find a population standard deviation and you multiply each member by a, then the result will be a * the standard population deviation of the first set of numbers.

Note
Your calculator will do this as well, but you have to know how to enter the data into your calculator. That requires that you follow the directions carefully. 

7 0
2 years ago
If the rate, in gallons per minute continues, how many gallons of water will flow from the hose in 45 minutes
natka813 [3]

Answer:

Step-by-step explanation:

45 gallons but your questtion doesnt make sense because you dont give us the number in gallons per minute

8 0
3 years ago
In the expression 5x + 15 = 150, you can start solving the problem
Gnoma [55]

Answer:

i think 2x

Step-by-step explanation:

7 0
2 years ago
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marysya [2.9K]
A. The function is bing translated down 5 units

b. The function is being stretched vertically stretched by 2 units

c. He function is being translated 5 units to the right

d. The functions being flipped and vertically stretched by 3 units
4 0
3 years ago
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