Answer: -5z+13
Step by step:
6z-5
-z-8 now you add -5, and -8 and it becomes positive. And then you subtract 6z and -z
You get -5z+13
Answer:
600 ml of pure water.
Step-by-step explanation:
To determine how much pure water the pharmacist should add to a 600ml solution with 30% active ingredient, so that this solution becomes 15%, the following calculation must be performed:
600 x 0.3 = 180
15 = 180
100 = X
100 x 180/15 = X
18,000 / 15 = X
1,200 = X
1,200 - 600 = 600
Thus, 600 ml of pure water should be added to achieve a 15% solution.
Answer:
<em>y</em><em> </em><em>=</em><em> </em><em>5</em><em>7</em><em>°</em><em> </em><em>and</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>3</em><em>3</em><em>°</em>
Step-by-step explanation:
<em>I've</em><em> </em><em>attached</em><em> </em><em>a</em><em> </em><em>picture</em><em>.</em>
<em>:</em><em>)</em>
They can NOT. A right angle is 90°. An obtuse angle is greater than 90°. All the angles in a triangle must add up to exactly 180°. If two angles are greater than 90° then they will add up to greater than 180, beacuse 90 plus 90 equals 180. You cannot have a triangle with two obtuse angles because they will add up to greater than 180°.
