In an examination , ten students scored the following marks : 60 , 58 , 90 , 51 , 47 , 81 , 70 , 95 , 87 , 99.
Feliz [49]
Answer:
Range = highest data - lowest data
99-47=
52
Answer: 4y+4z
Step-by-step explanation:
The only number I got was 1. I don’t think you divide 23 unless you want the remainder
Answer:
Slope = -3/5
Step-by-step explanation:
slope (m) = y2 - y1 / x2 - x1
m = -2 - 1 / 1 - -4
m = -3 / 1 + 4
m = -3 / 5
You can check the work by counting rise (-3 which means 3 units down) over run (5 which means 5 units to the right)
Answer: First Option
Walter needs to make at least 5 more cookies but no more than 40

Step-by-step explanation:
If we call x the number of cookies that Walter needs to make, then we know that the amount of cookies will be:

Then this amount must be greater than or equal to 20 and must be less than or equal to 55 then.
and 
This is:

We solve the inequality for x.

Then the amount of cookies that Walter must make must be greater than or equal to 5 and less than or equal to 40