Answer:
5A. 80
6A. 84
8. 80
12. 130
17. 800
2. 10.5 cm
3. $102
4. 33 cars
5B. Gas: $55.44 Electricity: $76.56
6B. 85%, $17
Step-by-step explanation:
:) I think these are correct! They are in order from each page!
5A: 80*20%=16
6A: 84*50%=42
8: 80*75%=60
12: 130*40%=52
17: The printer costs $160, and 800*20%=160
2: 25% of 84 is 21 so there is 63 cm left. Divide by 6 and you get 10.5
3: 25% of 136 is 34 so he has 136-34 left, or 102
4: 17.5% of 240 is 42 so there are 198 other colors. Divide by 6 you get 33
5B: 42% of 132 is 55.44 if you subtract you get 76.56
6B: 100%-15%=85% and 85% of 20 is 17
Answer:
0=0
Step-by-step explanation:
(x+6)(x-5) = x^2 + - 30
Step 1: Simplify both sides of the equation.
x^2 + x-30 = x^2 + x-30
Step 2: Subtract x^2 from both sides.
x^2 + x - 30 - x^2 = x^2 + x - 30 - x^2
x-30=x-30
Step 3: Subtract x from both sides.
x-30-x=30-x
-30 = - 30
step 4: Add 30 to both sides.
-30+ 30 = -30 + 30
0=0
Answer:
a. the less variability it has
Step-by-step explanation:
The standard deviation is a measure of the amount of variation or dispersion of a set of values.
When your standard deviation is big your data is more dispersed.
When your standar deviation is small your mean is a representative index of your data, and there is less variability.
If there was no dispersion of the data (if all your data be the same) then the standard deviation will be 0.
Answer:
592
Step-by-step explanation:
