We know that
<span>The unit of length to see better in a microscope, would be the smallest unit
therefore
</span><span>we will order the units from highest to lowest
</span><span>1 kilometer
</span>1 meter
1 centimeter<span>
1 millimeter
hence
the answer is
</span>1 millimeter<span>
</span>
-2 is a solution because first you subtract 4x then after you get a new equation you move 15 to the left, then you subtract 15 from -1, then you factor the left side, then you divide both sides of the equation by 2
Answer:
45
Step-by-step explanation:
These work problems are always done in terms of fractions ie if both (Kevin & Eric) took 30mins to mow and Kevin took 1.5hrs (90mins) alone then we can make an equation like below
1/time took for both = 1/time took for Kevin + 1/time took for Eric
1/30 = 1/90+1/x ==> calling time took for Kevin x
solving the above 1/x = 1/30-1/90
1/x=2/90
x=45