34/100
= 0.34
3 tenths, 4 hundreths
Answer:
Step-by-step explanation:
Given
A walking trail is 
long and a lake is located 
away from end of the trail
The distance from the start of the trail to the lake is the sum of the length of the trail and lake
Answer:
a) 1+2+3+4+...+396+397+398+399=79800
b) 1+2+3+4+...+546+547+548+549=150975
c) 2+4+6+8+...+72+74+76+78=1560
Step-by-step explanation:
We know that a summation formula for the first n natural numbers:
1+2+3+...+(n-2)+(n-1)+n=\frac{n(n+1)}{2}
We use the formula, we get
a) 1+2+3+4+...+396+397+398+399=\frac{399·(399+1)}{2}=\frac{399· 400}{2}=399· 200=79800
b) 1+2+3+4+...+546+547+548+549=\frac{549·(549+1)}{2}=\frac{549· 550}{2}=549· 275=150975
c)2+4+6+8+...+72+74+76+78=S / ( :2)
1+2+3+4+...+36+37+38+39=S/2
\frac{39·(39+1)}{2}=S/2
\frac{39·40}{2}=S/2
39·40=S
1560=S
Therefore, we get
2+4+6+8+...+72+74+76+78=1560
Answer:
15%
Step-by-step explanation:
To find the percent increase, use the equation:
percent of increase=<u>amount of increase</u>
original amount
The amount of increase is 92-80 = 12. The original amount of 80; this gives us
12/80 = 0.15 = 15%
Answer:
Option d.
Step-by-step explanation:
Total employment for sheet metal workers in 2016 is projected to be = 201,000
This is a 6.3% increase from 2006.
Let the number of workers in 2006 be n
n + (6.3% of n) = 201,000
n + ( 0.063n) = 201,000
1.063n = 201,000
n = 
n = 189,087. 4882 ≈ 189,000
the total employment in 2006 was approximately 189,000
Option d is the answer.
