Answer:
y = 17
Step-by-step explanation:
isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
Step-by-step explanation:
z = 3
2y + z = 1
2y + 3 = 1 {substituting z =3}
2y = 1 -3
2y = -2
y = - 2/2
y = -1
2x +3y +2z = 13
2x + 3 * (-1) + 2*3 = 13 { {substituting z =3} and y = -1}
2x -3 + 6 =13
2x + 3 = 13
2x = 13 - 3
2x= 10
x = 10/2
x = 5
Answer:
200.96 in2
Step-by-step explanation:
Area of a circle = nr²
n = 3.14
r = radius
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
diameter = 2r
radius = 16 inches / 2 = 8 in
Area = 3.14 x 8² = 200.96 in²
Answer:
7
Step-by-step explanation:
3×2
6+1
7
You multiple it by 2 since it is 1/2 and not a whole piece
For thsi you need to think of 2 simulatneous equations=
16f + 28s= 24232
f + s = 1090
We need to find a way to subtract one equation from the other so you can multiply the bottom by 16
so you would get
16f + 28s = 24232
16f + 16s = 17440
Now you can subtract the second one from the bottom one to get
12s= 6792
s= 566
So there were 566 tickets sold on staurday so to find fridasy you can do 1090 -566, which is 524
so on friday night 524 were sold and on saturday there was 566 sold
