Since 20 total gallons are needed, the amount of 10% solutions can be x and the amount of 20% solutions can be (20-x) since they add up to 20. In addition, the 17% solution has 20 gallons. Putting this into an equation, we get that 10% is 0.1 (by moving the decimal 2 spots to the left) , 0.2=20%, and 0.17=17%. With that information, we can determine that 10%*x+20%*(20-x)=20*0.17 due to that with 20 gallons of the 27% solution, we need a certain amount of solution. For every gallon, we add 0.17 of the solution, so we have 20*0.17. Similarly, we want that total amount to be represented by the amount of 20% + the amount of 10%.
0.1x+0.2(20-x)=0.1x+4-0.2x=-0.1x+4 using the distributive property
-0.1x+4=20*0.17=3.4. Subtract 4 from both sides to get -0.1x=-0.6, and multiply both sides by -10 (to separate x) to get x=6. Therefore, the amount of 10% solution is 6 gallons and the amount of 20% solution is 20-5=14 gallons
Median is just the middle number. If you put all the numbers in order from least to greatest:
4,5,6,7,8,9,10
Then you can find the one in the middle. In this case it’s 7.
Well in order to find 2/3 of the product of those two numbers
first we gotta figure out their product:)
lets do that first
3 3 16
---- x 16 or lets write it like this ---- x -----
8 8 1
and when you multiply fractions you just multiply across literally!!
ill show you
3 16 = 3 x 16 = 48
--- x -----
8 1 = 8 x 1 = 8
so now we have our new fraction!
48
-----
8
now we also know that this fraction also equals 6
so if we are trying to figure out 2/3s of 6 we would have to multiply them
but first lets try to change 2/3s to a decimal or in this case 0.6666666667
soooo now we multiply that by 6
0.6666666667 x 6 = 4
so that means that 2/3 of 6 is 4
hey! we have our answer:)
<span>answer? 4
</span>also dont forget to
MARK ME BRAINLIEST:D
$113.00×0.45=$50.85
$113.00+$50.85= $163.85
answer is $163.85
