Let K = km in 7 weeks
Equation:
K = 7(20)
Answer:
16 square feet
Step-by-step explanation:
The apothem of a square is equal to half of the length of one side.
This means that twice the apothem is equal to the length of one side.
2*2 = 4 ft
To get the area I will multiply the two sides (squares have equal sides):
4*4 = 16 ft^2
Call w the unknwon price of the walnuts, then:
total cost of walnuts = 1oz * w
Total cost of peanuts = 4 oz * $4/oz = $16
Total cost of nuts = 5oz * $5 /oz = $25
=> 1oz*w + $16 = $25 => w = ($25 - $16) /1oz = $9/oz
Verfify:
1oz * $9/oz + 4oz * $4/oz = $9 + $16 = $25, which is equal to 5oz * $5/oz.
Answer: $9 per oz.
600 is 10 times larger than 60
Answer:
8x +5y
Step-by-step explanation:
As with any purchase, the extended amount of the bill for an item is the product of the number of items bought and the price of each of them. The total bill is the sum of the extended amounts.
On Samuel's first visit he paid ...
3x +2y . . . . . dollars for apples and spinach
On Samuel's second visit, he paid ...
5x + 3y . . . . . dollars for apples and spinach
Then the total he spent was ...
(3x +2y) +(5x +3y) = (3x +5x) +(2y +3y) = 8x +5y