Solve for ddd.
41 =12d-741=12d−741, equals, 12, d, minus, 7
d =d=d, equals
Hint #11 / 4
Let's add and then divide to get ddd by itself.
Hint #22 / 4
\begin{aligned} 41 &=12d-7 \\ \\ 41\blue{+7} &= 12d-7\blue{+7}~~~~~~\blue{\text{add }7} \text{ to each side}\\ \\ 41\blue{+7}&=12d-\cancel{ 7} {\blue{+}\cancel{\blue{7}}}\\ \\ 41\blue{+7}&=12d\end{aligned}
41
41+7
41+7
41+7
=12d−7
=12d−7+7 add 7 to each side
=12d−
7
+
7
=12d
Hint #33 / 4
\begin{aligned}48 &= 12d \\ \\ \dfrac{48}{\pink{12}} &= \dfrac{12d}{\pink{12}} ~~~~~~~\text{divide each side by } \pink{12} \text{ to get } d \text{ by itself }\\ \\ \dfrac{48}{\pink{12}}&=\dfrac{\cancel{12}d}{\cancel{\pink{12}}} \\ \\ \dfrac{48}{\pink{12}}&=d \end{aligned}
48
12
48
12
48
12
48
=12d
=
12
12d
divide each side by 12 to get d by itself
=
12
12
d
=d
Hint #44 / 4
The answer:
d=\green{4}~~~~~~~~d=4 d, equals, start color green, 4, end color green, space, space, space, space, space, space, space, space[Okay, got it!]
\begin{aligned} 41 &=12d-7 \\\\ 41 &\stackrel{?}{=} 12(\green{4})-7 \\\\ 41 &\stackrel{?}{=} 48-7 \\\\ 41 &= 41 ~~~~~~~~~~\text{Yes!} \end{aligned}
41
41
41
41
=12d−7
=
?
12(4)−7
=
?
48−7
=41 Yes!
To know which point achieve min of 2x+2y, we need to test these four points:
0,7
2*0+2*7=14
3,7
2*3+2*7=6+14=20
6,3
2*6+2*3=12+6=18
6,0
2*6+2*0=12
so the point (6,0) is the point that satisfies the minimum value of 2x+2y
hope that helps
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Answer:
8. Surface area = 85.5cm^2
9. Volume = 45.5cm^3
Step-by-step explanation:
8. A=2(wl+hl+hw)=2·(2·6.5+3.5·6.5+3.5·2)=85.5
9. V=whl=2·3.5·6.5=45.5
Factor the side effects of equivalent subtract 9 from both sides of the equivalent take the square root of both sides of the equation subtract 10 from both sides of the equation
