Let n be the 40%, and 100-n be the 10%. Then:
.4n+.1(100-n)=.22(100)
.3n+10=22
.3n=12
n=40
The candy distributor needs 40kg of 40%, and 60kg of 10%
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Answer:
You have a higher chance of getting an even number than a multiple of three. There are 3 even numbers and only 2 multiples of three.
Answer:
$7.14
Step-by-step explanation:
First we need to find out how many hours she worked during the whole week. WE multiply 12 by 7 and get 84. To find out how ,much she charges per hour, divide 600 by 84 and you get this amount.
Answer:
it is 5
Step-by-step explanation:
because 25 time 33 is 54 and that why it is 5
Answer:
(-4, 2)
Step-by-step explanation:
4x+2y=-12
3x+y=-10
Start by dividing the first equation by 2 to simplify it...
2x+y=-6
Then, subtract -2x from both sides to isolate y...
y=-2x-6
Substitute -2x-6 for y in the second equation...
3x-2x-6=-10
Combine like terms...
x-6=-10
Add 6 to both sides
x-6+6=-10+6
x=-4
Plug -4 in for x to solve for y:
3(-4)+y=-10
-12+y=-10
Add 12 to both sides
-12+12+y=-10+12
y=2
(x,y)=(-4,2)
