Answer:
a) x + y
b) m x 7 or 7m
c) m x 3 or 3m
d) 
Step-by-step explanation:
a) the sum of x and y
- the sum most likely always means addition
b) the product of m and 7
- the product usually means multiplucation
c) the cost of 3 movie tickets at m dollars each
- so your getting 3 movie tickets at $m
the total would be m + m + m which is the same as mutiplying m by 3
d) 3 less than n, all divided by 4
- 3 less than n
less than usually means subtraction
than divided by 4
Answer:
The 1:n ratio is= 1 : 1.125
The n:1 ratio is= 8/9 : 1
Just the simple ratio is= 4 : 4.5
Answer:
The answer is 181
Step-by-step explanation:
PEDMAS
1 x 1 + 9 x 20
1 x 1 = 1
1 + 9 x 20
9 x 20= 180
1+180
which equals 181
Answer:
4. 988 people
5. a. 7 quarters
b. 6 quarters 2 dimes 1 nickel
c. 5 quarters 5 dimes
d. 4 quarters 7 dimes 1 nickel
1. $65.65, $5.05
2. $7.70, $15.40
3. a. 7 quarters
b. 6 quarters 2 dimes 1 nickel
c. 5 quarters 5 dimes
d. 4 quarters 7 dimes 1 nickel
4. 31 bags
5. $30, $4.50
Step-by-step explanation:
4. take value times percent.
5. think coins
1. find difference then divide by number of days (13)
2. multiply by 1/3 then find difference.
3. think coins
4. find area then divide by 200
5. just break the problem down and go quarter by quarter.
Answer:
16.3 years
Step-by-step explanation:
1 ha = 10,000 m^2
The total capacity of the landfill is:
If waste is compacted to twice its delivered density, its volume is half of the delivered volume. Assuming that a year has 52 weeks, the volume of compacted solid waste dumped per year is:
The expected life of the landfill is given by its capacity divided by the yearly volume:
The landfill has an expected life of 16.3 years.
