so for A it is 16 times as large because the area is 3*3 which is 9 but since it is a triangle the area is halved and is 4.5 and divide 72 by 4.5 which gives us 16
then for b I believe that the scale factor is 4
and for C it is asking for the bottom side of the scaled copy not of triangle A and 4*3=12 so the bottom is 12
ok now its complete =)
Lizette ran for 1.25 hours and walked for 3 hours.
distance = speed × time
Her total distance is the sum of her distances at the different speeds. Let w represent her walking speed in mi/h. For distances in miles, speeds in miles per hour, and time in hours, the problem statement tells us ...
19 = (w+5)(1.25) + (w)(3)
19 = 4.25w + 6.25 . . . . collect terms
12.75 = 4.25w . . . . . . . subtract 6.25
3 = w . . . . . . . . . . . . . . . divide by 4.25
Lizette's walking speed is 3 mph.
Lizette's running speed is 8 mph.
Let's solve your equation step-by-step.<span><span>100−<span>6x</span></span>=<span>160−<span>10x</span></span></span>Step 1: Simplify both sides of the equation.<span><span>100−<span>6x</span></span>=<span>160−<span>10x</span></span></span><span>Simplify: (Show steps)</span><span><span><span>−<span>6x</span></span>+100</span>=<span><span>−<span>10x</span></span>+160</span></span>Step 2: Add 10x to both sides.<span><span><span><span>−<span>6x</span></span>+100</span>+<span>10x</span></span>=<span><span><span>−<span>10x</span></span>+160</span>+<span>10x</span></span></span><span><span><span>4x</span>+100</span>=160</span>Step 3: Subtract 100 from both sides.<span><span><span><span>4x</span>+100</span>−100</span>=<span>160−100</span></span><span><span>4x</span>=60</span>Step 4: Divide both sides by 4.<span><span><span>4x</span>4</span>=<span>604</span></span><span>x=15</span>Answer:<span>x=<span>15
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Multiples that are shared by two or more numbers are also known as Common Multiples.
You just keep multiplying the current value by 0.95 to get next year's value.