Answer:
52 students
Step-by-step explanation:
1/8 is 6.5
6.5 times 8 is 52
<span><span>−1/</span>3</span>m−7=5Add 7 to both sides.<span><span><span><span><span><span><span>−1/</span>3</span></span>m</span>−7</span>+7</span>=<span>5+<span>7</span></span></span><span><span><span>
<span><span>−1/</span>3</span></span>m</span>=12</span>Multiply both sides by 3/(-1).<span><span><span>(<span><span><span>3/<span>−1</span></span></span></span>)</span>*<span>(<span><span><span><span>−1/</span>3</span></span>m</span>)</span></span>=<span><span>(<span><span><span>3/<span>−1</span></span></span></span>)</span>*<span>(12)</span></span></span><span>m=<span>−36</span></span>Answer:<span>m=<span>−36</span></span>
Answer:
0.133 mm
Step-by-step explanation:
From the question,
Density (D) = mass (m)/Volume (V).................... Equation 1
D = m/V
make V the subject of the equation
V = D×m............................ Equation 2
Given: D = 2.7 g/cm³, m = 2.568 g
Substitute into equation 2
V = 2.7(2.568)
V = 6.934 cm³.
But,
Thickness (n) = Volume/Area
n = V/A......................... Equation 3
Where A = Area of the square foil = 22.86² = 522.58 cm²
n = 6.934/522.58
n = 0.0133 cm.
n = 0.133 mm
