Answer:
No. 1: y = 90 (vertically opposite angles)
Also, x = 9. To find x, we'll have:
No. 4: y = 62 (vertically opposite angles)
Also, x = 12. To find x, we have:
Answer:
240 ml of 1.5% solution and 360 ml of 4% solution should be used.
Step-by-step explanation:
Since a lab assistant needs to create a 600 mL mixture that is 3% hydrochloric acid, and the assistant has solutions of 1.5% and 4% in supply at the lab, to determine the number of milliliters of the 1.5% solution and the number of milliliters of the 4% solution that must be used, the following calculations must be performed:
50 x 0.015 + 50 x 0.04 = 0.75 + 2 = 2.75
40 x 0.015 + 60 x 0.04 = 0.6 + 2.4 = 3
600 x 0.4 = 240
Therefore, 240 ml of 1.5% solution and 360 ml of 4% solution should be used.
Answer:
6^2
Step-by-step explanation:
When they are divided, just subtract the exponents. 5 - 3 = 2
Answer:
180
Step-by-step explanation:
When you multiply the about lost per hour by the amount of time, you get the amount lost total.
6*8=48
then you add that to the amount in the pool now, and you have the original amount.
Aaron is 11 and Laura is 12. Hope this helped.
