Perimeter (P) = 2L + 2w
68 = 2L + 2w
68 - 2L = 2w
2(34 - L) = 2(w)
34 - L = w
********************
Area (A) = L * w
240 = L (34 - L)
240 = 34L - L²
L² - 34L + 240 = 0
(L - 10)(L - 24) = 0
L = 10 or L = 24
w = 34 - L = 34 - 10 = 24 or w = 34 - 24 = 10
Answer: width = 10, length = 24 assuming length is bigger than the width
Answer:
(-1)*(-1)=1
1*(-1)= -1
first option (-1) is the right answer.
Answer: -280000
Step-by-step explanation: Remove parentheses: (a)=a =12x10 4 - 4x10 5
12x10 4 = 120000
4x10 5=400000
=120000-400000
then subtract the numbers:120000-400000= -280000
1-make the demonitores the same
2-remove digits next to (x)
3-solve manually
Step-by-step explanation:
use microsoft maths
4x - 3y = 18 (1)
8x - 6y = 34 (2)
Divide equation b by 2
4x - 3y = 17
So now you have
4x - 3y = 18
4x - 3y = 17
--------------------subtract
0 - 0 = 1
0 ≠ 1
No solution
Answer is the last option
4x - 3y = 18
8x - 6y = 34
------------------------------
3x + 6y = 22 (1)
6x + 12y = 44 (2)
Divide equation 2 by 2
3x + 6y = 22 -------------same as equation 1
Subtract equation 2 from 1
0 = 0
Infinitely many solutions
Answer is the second option
3x + 6y = 22
6x + 12y = 44