Formula for perimeter a+b+a+b
12+5+12+5= 17+17= 34 .34=P
Answer:
85-86%
Step-by-step explanation:
Make it an equation
You want to find the percent out of a hundred, so 42 is 100 since it is all of the questions and 36 is the unknown percent X
36/42 = X/100
36 X
42 100
Cross multiply
Do math and solve for X
36 x 100 = 42 x X
3600=42X
X=85.71
Answer:
see explanation
Step-by-step explanation:
Given the 3 equations
3x + 5y + 5z = 1 → (1)
x - 2y = 5 → (2)
2x + 4y = 11 → (3)
Use (2) and (3) to solve for x and y
Multiply (2) by 2
2x - 4y = 10 → (4)
Add (3) and (4) term by term
4x = 21 ( divide both sides by 4 )
x =
Substitute this value of x into (3)
2 × + 4y = 11
+ 4y = 11 ( subtract from both sides )
4y = ( divide both sides by 4 )
y =
Substitute the values of x and y into (1) and solve for z
3 × + 5 × + 5z = 1
+ + 5z = 1
+ 5z = 1 ( subtract from both sides )
5z = - ( divide both sides by 5 )
z = -
Solution is
x = , y = , z = -
Since there are 16 ounces in a pound, you can do 160 divided by 16 and get 10 pounds
Answer:
550.2cm
Step-by-step explanation:
6 cm x 7 cm x 13.1 cm = 550.2 cm