Answer:
L=7cm
W= 26cm
Step-by-step explanation:
Step one
Given data
let the lenght be x
L= x
W= 3x+5
P= 66
Step two:
P=2L+2W
substitute
66= 2x+2(3x+5)
66= 2x+6x+10
66= 8x+10
collect like terms
66-10= 8x
56= 8x
x= 7cm
L= 7cm
W= 3(7)+5
W= 21+5
W= 26cm
Mean is the average number in the data set.
To get the average we first add all the numbers.
After we add all these numbers we then divide by the number of numbers in the data set.
So we do 22+18+38+6+24+18 which is equal to 126 there are six numbers so we divide 126 by 6. This gives us a mean of 21.
ANOTHER EXAMPLE:
Another example of this is the data set (4,65,7,34,5)
We first add all the numbers and get 115 then we divide by 5 and get 23 as the mean.
Let y= -5(x) so that if x =5; y = -5(5) = -25; Therefore let x =3; y = -5(3) = -15
Answer:
Yes, BC || DE
Step-by-step explanation:
set up proportion and cross multiply to solve:
15/10 = 12/8
120 = 120
This is true! You can justify by explaining how you cross multiplied like the bold words above :)
Answer:
160 ounces
Which is 10 pounds
And 4410 chip packets will equal about a ton
Step-by-step explanation:
because 20 x 8 =160
35274/8 = 4409.25
*note 35274 ounces is equal to a ton