Answer:
should be the answer to it
Step-by-step explanation:
(2,0.64)
Answer:
The four operations are addition, subtraction, multiplication and division!!
Step-by-step explanation:
Answer:7
Step-by-step explanation:
Well we can make the red scarfs 12-x and the white scarfs x. Form this we can construct an equation:
(12-x)5+3x=50
By the way I multipled the amount of red scarfs by 5 becasue of it price and multipled the amount of white scarfs by 3, becasue again it is its price. Form this we get that x is equal to 5 and since the red scarfs is 12-x we can get that the red scarfs are 12-5 which is 7.
Answer:
Should be Product of two expression is (6x-y)(2x-y)=12x^2-8xy+y^2
If you would like to know how many pounds of each kind of candy must the grocer use to make 100 pounds worth 85 cents a pound, you can calculate this using the following steps:
Candy number 1:
c pounds = ? ... 90 cents a pound
Candy number 2:
d pounds = ? ... 40 cents a pound
c + d = 100 pounds
c = 100 pounds - d
c * 90 cents + d * 40 cents = 100 pounds * 85 cents
(100 - d) * 90 + d * 40 = 100 * 85
100 * 90 - 90 * d + d * 40 = 100 * 85
100 * 90 - 100 * 85 = 90 * d - 40 * d
500 = 50 * d
d = 500 / 50
d = 10 pounds
c = 100 pounds - d = 100 - 10 = 90 pounds
There should be 90 pounds of candy number 1 and 10 pounds of candy number 2.
90 pounds * 90 cents + 10 pounds * 40 cents = 8500 cents per 100 pounds
8500 cents / 100 pounds = 85 cents a pound