7 * 0.5 + 3 * 0.8 = 3.5 + 2.4 = 5.9
<span>5.9/10 X 100 = 59%
</span><span>59% concentration of new mixture</span>
12 cubic feet!! this may be it
Answer:
about 5.2 years
Step-by-step explanation:
It is 72 1/10. This is because 72 is a whole number and point one would be tenths.
Answer:15x
Step-by-step explanation:you add 12 + 3 which equals 15 and then you just carry the x over
