Complimentary angles add up to 90 degrees and supplementary angles add up to 180 degrees...
Complementary angle = 90-52= 38°
Supplementary angle = 180-52= 128°
Answer:
-3.786 × 10^7
Step-by-step explanation:
Put an decimal behind a number 1-10
but keep the negative sign
so you should get
-3.7860000
Then you count how many numbers are to the right of the decimal which is 7.
That number will become the exponent and then you take away the zeros
You should then have
-3.786 × 10^7 as your answer.
10 quarts of 20 % salt solution mixed with 5 quarts of 80 % salt solution to make 15 quarts of 40 % salt solution
<em><u>Solution:</u></em>
The final mixture is 15 quarts
Let amount of 20% solution to be mixed, be x
Then, the amount of 80 % solution to be mixed is 15 - x
Thus, we can say,
"x" quarts of 20 % salt solution mixed with (15 - x) quarts of 80 % salt solution to make 15 quarts of 40 % salt solution
thus, we frame a equation as,
Thus 10 quarts of 20 % solution is mixed
Then, 15 - x = 15 - 10 = 5
5 quarts of 80 % salt solution is mixed
Answer: 41/20
Step-by-step explanation:
there is a possibility that this is incorrect bb srry