Answer:
A = 2x²; 128 ft²
Step-by-step explanation:
Area of original garden = x²
Let A = area of new garden. Then
A = 2x²
If x = 8 ft,
A = 2 × 8² = 2 × 64 = 128 ft²
The area of the new garden is 128 ft²
.
Answer:
x = 4
, y = 2
Step-by-step explanation by elimination:
Solve the following system:
{2 x + 3 y = 14 | (equation 1)
x + 5 y = 14 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{2 x + 3 y = 14 | (equation 1)
0 x+(7 y)/2 = 7 | (equation 2)
Multiply equation 2 by 2/7:
{2 x + 3 y = 14 | (equation 1)
0 x+y = 2 | (equation 2)
Subtract 3 × (equation 2) from equation 1:
{2 x+0 y = 8 | (equation 1)
0 x+y = 2 | (equation 2)
Divide equation 1 by 2:
{x+0 y = 4 | (equation 1)
0 x+y = 2 | (equation 2)
Collect results:
Answer: {x = 4
, y = 2
712 is divisible by two because it ends in two.
Let plug the variable into the equation.
We can conclude that this is incorrect because
does NOT equal
The correct answer would be:
;
; or
or
All
of these are correct answers.
3/6
3=heads in a row
2=head and tails
3=times tossed
3/3*2
3/6 or 1/2
