Answer:
y=4
Step-by-step explanation:
C, 51 because acute angles are less than 90° but together the angles create a right triangle which is 90°.
540ml with 12% solution
get 12% of 540
540 times 0.12 = 64.8 ml of pure acid
Answer:
13
Step-by-step explanation:
15 - 4 + 7 - 5 = 13
Simply expand the brackets and subtract and add accordingly.
Answer:
Step-by-step explanation:
First both the rational numbers should have same denominators. So, find least common denominator
Least common denominator is 10

Now multiply the numerator and denominators of the both the numbers by 10.
