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NeX [460]
3 years ago
14

Solve for k. 15 - 5(4k – 7) = 50

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
8 0

Answer:

15-5(4k-7)=50

<=> 15 - 20k + 35 = 50

<=> 50 - 20k = 50

<=> -20k = 0

<=> k=0

Step-by-step explanation:

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2.18 repeating.

Step-by-step explanation:

So it will be 24/11 because the negatives cancel out each other. So the answer is 2.18 repeating.

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What is the surface area of this prism?
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Let's find the area of each shape that makes up the prism.  Let's first start with the triangles.

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216 is the area of both triangles. Each triangle has an area of 108 though.
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The difference between the amount of money spent on furniture and electrical appliances is 820. they spent a total of $12498 on
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How do you solve 235+123 using a number line?
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Anyone, I need help... Just answer the 6 (c)....and also proper working.☺️
Ainat [17]

Answer:

(i) The area of the rabbit cage when the width is 5.2 m is 81.5 m²

(ii) The area of the rabbit cage if Wilson has 40 meters of wire mesh is 75 m²

Step-by-step explanation:

(i) The given relation of the area, A to the width P of the rabbit cage is A = 3·p²

The graph of the function between the values of 0 and 6 inclusive is found as follows;

A,              3·p²

0,               0

1,                1

2,               12

3,               27

4,               48

5,               75

6,               108

Please find attached the graph of A to 3·p²

From the graph, we have when the the width, p, of the rabbit cage = 5.2, the area, A ≈ 81.5 m²

The area of the rabbit cage when the width is 5.2 m = 81.5 m²

(ii) Also from the graph given that the total wire mess with Wilson = 40 meters, we have;

The formula for the perimeter of the cage = The formula for the perimeter of a rectangle = 2×length + 2×width

The formula for the perimeter of the cage = 2×3×p + 2× p = 8·p

Where the total length of the wire mesh available = 40 meters for the cage

The 40 meters of wire mesh will be used round the perimeter of the cage

∴ 40 m. = 8·p

p = 40/8 = 5 m.

At p = 5 m. the area is given as A = 75 m².

Therefore, the area of the rabbit cage if Wilson has 40 meters of wire mesh = 75 m².

5 0
3 years ago
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