Answer: {y,x}={2,8}
// Solve equation [2] for the variable y
[2] y = -2x + 18
// Plug this in for variable y in equation [1]
[1] (-2x+18) - x = -6
[1] - 3x = -24
// Solve equation [1] for the variable x
[1] 3x = 24
[1] x = 8
// By now we know this much :
y = -2x+18
x = 8
// Use the x value to solve for y
y = -2(8)+18 = 2
Solution :
{y,x} = {2,8}
Answer:
50
Step-by-step explanation:
Step 1: Recognizing that we have an isosceles triangle
This is an isosceles triangle because it has two congruent sides(two sides with a length of 7). The angles across from the congruent sides are also congruent, so the angle without a label measures x∘
x, degrees:
Hint #22 / 4
Step 2: Writing an equation
The three angles in a triangle add up to 180 180 ∘
180, degrees. We can write this as an equation:
x + x + 80 = 180∘
+x ∘
+80 ∘
=180 ∘
x, degrees, plus, x, degrees, plus, 80, degrees, equals, 180, degrees
Hint #33 / 4
Step 3: Solving for x
x+x+80
2x+80
2x+80−80
2x
2
2x
x
=180
=180 Simplify the left-hand side
=180−80 Subtract 80 from each side
=100
=
2
100
Divide each side by 2
=50
Hint #44 / 4
The answer
x = 50
Given hollow cubical box of side 0.30 m=3 dM
volume V=3^3=27 dm^3 = 27 L
Weight of box
= weight of (fresh) water (1 kg/L) displaced
= V/3 = 9 L of water = 9 kg
When water is filled so that the total weight of water equals the weight of volume of box, the top rim of the box will be at water level.
Remaining volume = 27-9=18L
height of 18L of water when water rushes in
= 18/(3^2) = 2 dm (=0.2m)
Answer:
7
Step-by-step explanation:
2,4,6,8,10,12,14 that is howni got my answer
Answer:
I don't understand what should i answer.
The only thing I undrestood was that this is a relation which can be a function.
