Answer:
x=50
Step-by-step explanation:
180-3x+x+16+6x-26+90=360
2x+260=360
2x=360-260
2x=100
x=50
Answer:
The price of one DVD is 4 and price of one CD is 5
Step-by-step explanation:
2DVDs and 2CDs = 18
3DVDs and 2CDs = 22
DVDs can be x and CDs can be y:
2x + 2y = 18
3x + 2y = 22
Subtract to get:
-x = -4
x = 4
So the price of one DVD is 4
Plug that into one of the original equations:
2x + 2y = 18
2(4) + 2y = 18
8 + 2y = 18
2y = 10
y = 5
So the price of one CD is 5
Answer:
ordered pair(-2 , 3) is the solution
Step-by-step explanation:
y=x+5
y=-2x-1
x+5 = -2x-1 substitution
x+5+2x-5 = -2x-1+2x-5
3x = -6
x = -2
y = -2+5 = 3
ordered pair(-2 , 3) is the solution
16,330 is 16,326 rounded to the nearest tenth. You have to go to the number to the right of the tens column and if it's 5 or over 5, you round up one.
Answer:
128mm
Step-by-step explanation:
You would have to multiply all the sides.
4mm · 8mm · 4mm = 128mm
Therefore the volume would be 128mm
