Since you need an isolated variable to use the substitution method, we need to re-arrange one of the equations. This will probably be easiest to do with the first one.
Add 5y to both sides of the first equation.
x=10+5y
Now, in the second equation, put in 10+5y in any spot that has an x.
2(10+5y)-10y=20
Distribute the 2 to both numbers in the parenthesis.
20+10y-10y=20
Combine like terms.
20=20
This means that the two equations are actually the same. You can see this if you multiply the whole first equation by 2
2(x-5y=10)
2x-10y=20, which is the same as the second equation. Therefore, the two equations are actually the same one.
Multiply 300 by 54%= 16,200
Divide 16,200 by 100
= 162.20
Round 162.20 to the nearest whole
= 162
hope this helps.
This is the steps to finding a percent
Answer: #4 = precipitation
#3 = evaporation
#2 clouds
#1= sun
#5= water
Step-by-step explanation:
Answer:
YES: All four conditions in BINS have been satisfied.
Step-by-step explanation:
Check out the BINS conditions:
1. Is the number of trials a positive integer? YES
2. Is the experiment binary: either PASS or FAIL? YES
3. Is the probability of success given and in the range 0<p<1? YES
4. Are the outcomes independent? YES
YES: All four conditions in BINS have been satisfied.
Answer:
127
Step-by-step explanation:
Given that a company delivers newspaper to the town of wayland. It has 158 customer on the north side of town, 378 customers on the west side, 237 customers on the south side
It does not depend on the side of the town
For the total town the total number of customer's = number of customer's is north side + the number of customer's in west side + number of customer's in south side
Total number of customer's = 158 + 378 + 237 = 773
Given that the company received a total number of 900 newspaper's
The number of newspaper left over = total number of newspaper's received - total number of customer's = 900-773 = 127
Therefore the total number of newspaper left over are 127
