Answer:
they both has 7 slides and the presentation had a duration of 28 seconds
Step-by-step explanation:
we have to setup equation that makes them equal to each other if you know what i mean. 2x+16=3x+10
then we just solve for x
2x+16=3x+10
subtract 10 from each side
2x+6=3x
step 2 subtract 2x from each side
x=6
so both of their presentations are 7 slides long
then to find the length of their presentations we just plug in 6 to one of the equations
2(6)+16
2x6=12 12+16=28 so both of their presentations were 28 seconds
Answer:
x=31
y=6
Step-by-step explanation:
2x+3y=80
x+y=37
solve by elimination:( multiply second equation by 2) to eliminate x
2x+3y=80
2x+2y=74
subtract the two equations:
2x+3y-(3x+2y)=80-74
2x+3y-3x-2y=6
y=6 (3 point basket)
substitute: x+y=37, x=37-6=31
x=31 (2 point shot)
Answer:
because it may not be suitable for all the time
12x+2y=112
6x+y=56
6x=56-y
x=(56-y)/6
y=(56-6x)
The correct option is: B. 450
<u><em>Explanation</em></u>
Current value of the investment is 
dollars and 30 years ago, the value of the investment was 
dollars.
Suppose, the value of investment today is 
times greater than the value of the investment thirty years ago.
So, the equation will be........
Thus, the value of the investment today is 450 times greater than the value of the investment thirty years ago.
