You take the difference of the numbers.
Answer:
14.99
Step-by-step explanation:
20.02=50-2t
20.02-50= -2t
-29.98= -2t
Answer:
None, but the answer is <em><u>1</u></em><em><u> </u></em><em><u>metre</u></em><em><u>.</u></em>
Step-by-step explanation:
<em>7</em><em>0</em><em> </em><em>c</em><em>m</em><em> </em><em>=</em><em> </em><em>7</em><em>0</em><em>0</em><em> </em><em>m</em><em>m</em>
<em>7</em><em>0</em><em>0</em><em> </em><em>d</em><em>m</em><em> </em><em>=</em><em> </em><em>7</em><em>0</em><em>,</em><em>0</em><em>0</em><em>0</em><em> </em><em>m</em><em>m</em>
<u><em>7</em><em> </em><em>m</em><em> </em><em>=</em><em> </em><em>7</em><em>0</em><em>0</em><em>0</em><em> </em><em>m</em><em>i</em><em>l</em><em>l</em><em>i</em><em>m</em><em>e</em><em>t</em><em>e</em><em>r</em><em>s</em></u>
Answer:
- 26 ounces of 55% solution
- 104 ounces of 80% solution
Step-by-step explanation:
Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...
0.80x +0.55(130 -x) = 0.75·130
0.25x = 0.20·130 . . . . . . . subtract 0.55(130)
x = 0.20/0.25(130) = 104
130-x = 26
She should use 26 ounces of 55% solution and 104 ounces of 80% solution.
Answer:
The addition property of equality
Step-by-step explanation:
According to the addition property of equality, if we add the same number to each side of an equation, the equality is still true.
We are given the equation
x – 3 = 7, and we must solve for x.
We want to get x by itself, so we <em>add 3 to each side</em>.
x – 3 + 3 = 7 + 3
x = 10
We have just used the addition property of equality.
