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2 years ago

What is the pattern for -5, 10, -15, 20, -25

Mathematics

1 answer:

natita [175]2 years ago

5 0

Answer:

The number 5 multiplied by -1 then by 2 then by -3 then by 4....... (alternating positive and negative

Step-by-step explanation:

5*-1 = -5

5*2 = 10

5*-3= -15

5*4= 20

5*-5 = -25 ......

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The city planning commission has been given a budget of 300,000 if the density of concrete is 150 lbs/ft3 determine if the cpc c

Romashka [77]

Answer:

Check Explanation

Step-by-step explanation:

The volume of concrete required to build the bridge is missing and should be provided.

In its absence, let us assign a letter to it.

Let the volume of concrete required to build the bridge be V ft³.

And we further assume that the concrete is the only major material needed to build the bridge for the sake of our question.

Density = (mass/volume)

Density = 150 lb/ft³

Mass = ?

Volume = V ft³

Mass = (Density) × (Volume)

Mass of concrete required = 150 × V = (150V) lb

Cost of concrete is 0.80 per lb

1 lb of concrete costs 0.80

150V of concrete will cost 150V × 0.80 = (120V) currency amount.

Now, depending on the value of V, we can now determine if the city planning commission (cpc) can afford the bridge.

If 120V > 300,000 budget, the cpc cannot afford the bridge, but if 300,000 budget > 120V, then the cpc can afford the bridge.

Hope this Helps!!!

7 0

3 years ago

I need some help; if you don't know the answer, don't answer

ohaa [14]

Answer:

B is the right answer and if you want learn this, than learn algebric expression

7 0

3 years ago

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The size of a television screen is measured by the length of thee diagonal of the screen. What size is a television screen that

Murljashka [212]

Answer:

approximately 6.708 feet

Step-by-step explanation:

We use the Pythagorean theorem to solve the problem, using 3 feet and 6 feet as the legs of a right angle triangle. The diagonal of the screen is therefore the "hypotenuse" of this right angle triangle, and can be determined via the formula:

$diagonal = \sqrt{(3\,ft)^2+(6\,ft)^2} \\diagonal = \sqrt{9\,ft^2+36\,ft^2} \\diagonal = \sqrt{45} \,ft\\diagonal = 3\,\sqrt{5} \,ft$

which is approximately 6.708 feet

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3 years ago

X - y = 4 x + y = 8 The x-coordinate of the solution to the system shown is _____.

Valentin [98]

Hello :
X - y = 4...(1)
x + y = 8...(2)
(1)+(2) :2x= 12

The x-coordinate of the solution to the system shown is __6___.

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2 years ago

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(7x-49x^2)/(7x) can smeone solve this? Thank you! I hope you have a great day!

svp [43]

Answer:

x = 1/7

Step-by-step explanation:

$\frac{(7x-49x^2)}{7x}\\\\\frac{7x(1-7x)}{7x} \\\\1-7x=0\\\\1=7x\\\\$

x = 1/7

3 0

2 years ago