This is what a ladder diagram looks like. <span>
<span>
</span><span><span>
2
<span> |<u> 32 </u>
</span></span><span> 2
<span>|<u> 16 </u>
</span></span><span> 2
<span>|<u> 8 </u>
</span></span><span> 2
<span> |<u> 4 </u>
</span></span><span> 2
<span> <u>| 2 </u></span></span><span><u> </u>
1
32 = 2</span></span></span>⁵<span>
32 / 2 = 16
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1</span>
Volume=length x width x height
3 x 2=6 6 x 5=30
a is 30
b is 2 x 3 x 1 or 6 x 1
V=b x h or L x w x h
2800 + 1.18x = y
x = monthly sales
y = monthly income
y needs to be at least 6400 so that means;
2800 + 1.18x ≥ 6400
1.18x ≥ 6400 - 2800
x ≥ (6400 -2800) / 1.18
x ≥ 3050
So she needs to earn at least 3050, which means <span>≥ 3050</span>
