Answer:
$0.46 per pen
Step-by-step explanation:
6 pens : $2.76
1 pen : $x
x/1 = 2.76/6
x = $0.46
For every cup of sugar you use 1 1/2 tsp.
X=12(1.5)
18 tsp
To answer this let’s express it as an infinite series:
Sum from n=0 to infinity of .8(1/10)^n = .8/(1-1/10) = (8/10)/(9/10) = 8/9
Hello There!
<u><em>The volume of a cylinder is pi * r^2 * h. It's a circle times the height. </em></u>
<u><em></em></u>
<u><em>The volume of a cone is (1/3) * pi * r^2 * h. So it is one third of the volume of a cylinder with the same dimensions. </em></u>
<span><span>4−<span>2<span>(<span>7+<span>8x</span></span>)</span></span></span>=<span><span>12−<span>6<span>(<span><span>2x</span>−7</span>)</span></span></span>+<span>4x
</span></span></span>
<span><span>4−<span>2<span>(<span>7+<span>8x</span></span>)</span></span></span>=<span><span>12−<span>6<span>(<span><span>2x</span>−7</span>)</span></span></span>+<span>4x
</span></span></span><span><span><span>4+<span><span>(<span>−2</span>)</span><span>(7)</span></span></span>+<span><span>(<span>−2</span>)</span><span>(<span>8x</span>)</span></span></span>=<span><span><span>12+<span><span>(<span>−6</span>)</span><span>(<span>2x</span>)</span></span></span>+<span><span>(<span>−6</span>)</span><span>(<span>−7</span>)</span></span></span>+<span>4x</span></span></span>(Distribute)
<span><span><span><span><span>4+</span>−14</span>+</span>−<span>16x</span></span>=<span><span><span><span>12+</span>−<span>12x</span></span>+42</span>+<span>4x
</span></span></span><span><span><span>(<span>−<span>16x</span></span>)</span>+<span>(<span>4+<span>−14</span></span>)</span></span>=<span><span>(<span><span>−<span>12x</span></span>+<span>4x</span></span>)</span>+<span>(<span>12+42</span>)</span></span></span>(Combine Like Terms)
<span><span><span>−<span>16x</span></span>+<span>−10</span></span>=<span><span>−<span>8x</span></span>+54
</span></span><span><span><span>−<span>16x</span></span>−10</span>=<span><span>−<span>8x</span></span>+54
</span></span>Step 2: Add 8x to both sides.
<span><span><span><span>−<span>16x</span></span>−10</span>+<span>8x</span></span>=<span><span><span>−<span>8x</span></span>+54</span>+<span>8x
</span></span></span><span><span><span>−<span>8x</span></span>−10</span>=54
</span>Step 3: Add 10 to both sides.
<span><span><span><span>−<span>8x</span></span>−10</span>+10</span>=<span>54+10
</span></span><span><span>−<span>8x</span></span>=64
</span>Step 4: Divide both sides by -8.
<span><span><span>−<span>8x</span></span><span>−8</span></span>=<span>64<span>−8
</span></span></span><span>x=<span>−<span>8</span></span></span>