Answer:
1053 m^3
Step-by-step explanation:
Pyramid top 1/3 * 9 * 9 * 12 = 324 m^3
Base 9 * 9 * 9 = 729 m^3
total 1053 m^3
Answer:
rational, integer, whole
Step-by-step explanation:
Answer:
(3,-4) or x=3 and y= -4
Step-by-step explanation:
I'm going to solve this by substitution
We first need to get a variable by itself in one of the two equations (it doesn't matter which variable and the equation you do the work on doesn't matter either)
I'm going to solve for y in the second equation
-4x-4y=4
add 4y and subtract 4 from both sides to get
-4x-4=4y
Divide by 4 to get
-x-1=y
We can plug this value in for y into the first equation and get
4x+5(-x-1)= -8
Solve for x
4x-5x-5= -8
-x-5= -8
-x= -3
x=3
We can plug this value into one of the first two equations and solve for y
4(3)+5y= -8
12+5y= -8
5y= -20
y= -4
Therefore the solution is (3,-4) or x=3 and y= -4
Answer: £485
Step-by-step explanation: Given that the rate is $3.20 to £1.
Exchange of $1,600 will be
1600/3.20 = £500
With commission on 3%
3/100 × 500 = 15
Take away £15 from £500
500 - 15 = 485
