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2 years ago

Solve the inequality and graph its solution: 5n – 10 > 25

Mathematics

2 answers:

solniwko [45]2 years ago

8 0

N is 3. you subtract the 10 from the 25, then divide it by 5.

kozerog [31]2 years ago

5 0

5n > 35 (Addition property of equality)
n > 7 (division property of equality)

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2 years ago

What is the quotient of -8(^6)/4x(^-3)

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For this case we must find the quotient of the following expression:

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2 years ago

How many 4 inch by 8 inch bricks are needed to build a walk 6 feet wide and 24 feet long

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2 years ago

Read 2 more answers

Can someone help me with this question please and thank you.

Diano4ka-milaya [45]

Is there a graph or chart? Or a word problem that tells us some information

4 0

2 years ago

Can you guys help please im so confused

marissa [1.9K]

Answer:

a) see below

b) 40x20 meters

Step-by-step explanation:

Write down what you know:

- The area of the enclosure is length*width, so

$A = x \cdot y$

- The length of the fencing is 80 meters, so

$2y + x = 80$

Now we have to combine these two equations above, and get rid of y in the process.

First rewrite the second as:

$y = 40 - \frac12 x$

Then substitute for y in the first:

$A = x (40 - \frac12 x) = 40x - \frac12x^2$

b) To maximize A, find the zero of the first derivative:

$A'(x) = 40 - x = 0 \implies x=40$

So y = (80-40)/2 = 20 meters.

8 0

1 year ago