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svet-max [94.6K]
3 years ago
15

A=1/2(B+b)h ; solve for b.

Mathematics
1 answer:
Tju [1.3M]3 years ago
5 0

Answer:

b = \frac{2A -Bh}{h}

Step-by-step explanation:

The given relation is :

A = \frac{1}{2}  (B + b)h

We want to solve for b

We multiply both sides by 2 to get

2A = (B + b)h

Divide through by h

\frac{2A}{h}  =B + b

Subtract B from both sides

\frac{2A}{h}  - B  = b

We now simplify the left hand side to get

\frac{2A -Bh}{h}=b

Or

b = \frac{2A -Bh}{h}

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2 years ago
Carrots sell for $2.10 per pound, and crackers sell for $2.90 per pound. Glen bought some carrots and some crackers. The total w
musickatia [10]
The answer is
carrots - 0.8 pounds
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x - the weight of carrots
y - the weight of crackers
<span>The total weight was 2.3 pounds: x + y = 2.3
</span>
Carrots sell for $2.10 per pound: 2.10x
<span>Crackers sell for $2.90 per pound: 2.90y
</span><span>The total cost was $6.03: 2.10x + 2.90y = 6.03

</span>x + y = 2.3
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x = 2.3 - y
2.10x + 2.90y = 6.03
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2.10(2.3 - y) + 2.90y = 6.03
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0.80y = 1.20
y = 1.20y : 0.80
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x = 2.3 - y = 2.3 - 1.5
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3 0
3 years ago
Read 2 more answers
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here is the work if needed...
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38. What is the surface area of a conical grain storage tank that has a height of 62 meters and a diameter of 24 meters? Round t
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1. The surface area of a cone S is S= \pi  r^{2}+  \pi rl, where r is the radius of the base and l is the slant height.

2. The slant height l is found as follows:

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3. 

A=\pi r^{2}+ \pi rl=3.14(12)^{2}+3.14*12*63.15&#10;
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8 0
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In other words, how many ways are there to choose n objects from a total of n objects? Just one; take all of them at the same time.
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