1. $350*1.08=$378
2. $378*1.08=$408.24
3. $408.24*1.08=$440.899
4. $440.889*1.08=$476.17
5. $476.17*1.08=$514.26
Ellie need to wait 5 years. She will earn $14.26 after 5 years for own needs.
First problem: I believe YW: 34
ZX: 17
VX: 34. I have a pic attached but it probably doesn’t make much sense :)
Answer: C
Steps: 4x + y = -4, x + y = 2
Isolate the x for (x + y = 2): x = 2 - y
Plug the value of x into the other equation: 4(2 - y) + y = -4
Simplify: -4y + 8 + y = -4
Combine like variables (letters): -4y + y = -3y
So -3y + 8 = -4
Subtract eight from both sides: -3y + 8 - 8 = -4 - 8
-3y = -12
Divide both sides by negative three: -3y ÷ -3 = -12 ÷ -3
Simplify: y = 4
Plug the value of y into one of the original equations (I'll use x + y = 2):
So x + 4 = 2
Isolate the x variable: x = -2
Answer:
b
Step-by-step explanation:
Minimum sample size for estimating the population proportion of pine trees over 90 years old in a forest near where you live with <em>margin of error</em> no more than 2% can be calculated using the equation:
n≥ p×(1-p) × 
where
- p is the proportion of pine trees over 90 years old in a forest near where you live
- z is the corresponding z-score for the confidence level
- ME is the margin of error in the estimation (2% or 0.02)
For this case, the first thing you should know is the meaning of the acronym S.I.
S.I .: International system
The unit for the mass of any object in the international system is:
m: [kilograms]
Therefore, the unit of measurement of the mass of a boulder is kilograms.
Answer:
the correct SI unit to use in measuring the mass of a boulder is:
C. kilograms
