<span>22:7 as a common fraction is 22/7 and to convert to a decimal fraction divide 7 into 22. I got 22/7
= 3.142857... Rounded to the nearest hundredth this is 3.14. If you
perform the same operations with 22:5 then 22/5 = 4.4 and you don't need
to round.</span>
4 gallons of water is needed to dilute to a concentration of 10%.
<u>Step-by-step explanation:</u>
It is given that,
The 5 gallons of water contains 18% of acid solution.
Now, we are asked to find the gallons of water needed to dilute it to a concentration of 10% acid solution.
We obtain the equation by stating that the amount of acid 10% in the water must dilute up to 18%.
For this, x amount of water should be added.
Therefore, the equation is framed as,
⇒ 0.1 (x+5) = 5 (0.18)
⇒ 0.1x + 0.5 = 0.9
⇒ 0.1x = 0.9 - 0.5
⇒ x = 0.4 / 0.1
⇒ x = 4
∴ 4 gallons of water is needed to dilute to a concentration of 10%.
Answer:
(-6,7/2)
Step-by-step explanation:
Use midpoint formula of x2+x1 /2 and y2+y1 /2 to get the midpoint
Hope it helps .
Step-by-step explanation:
Solve the equation for the diameter of the circle, d= C/π. In this example, "d = 12 / 3.14." or "The diameter is equal to twelve divided by 3.14." Divide the circumference by pi to get the answer.
