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1 year ago

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A company offers each of its 80 workers either a desktop computer that costs $900 or a laptop that costs $1550. Write and simpli

fy an expression for the cost of all the computers when n workers choose desktop computers. Find the cost if 65 workers choose desktop computers.

1 answer:

Vesna [10]1 year ago

7 0

The simplified expression for the total cost is 124000 - 650n and the cost if 65 workers choose desktop computers is 81750

<h3>Write and simplify an expression for the cost of all the computers </h3>

The given parameters are:

Number of workers = 80

Cost of desktop = $900

Cost of laptop = $1550

If n workers choose desktop computers, then 80 - n workers choose laptop computers

So, the expression for the cost of all the computers is

Total cost = 900n + 1550 * (80 - n)

Expand

Total cost = 900n + 124000 - 1550n

Evaluate the like terms

Total cost = 124000 - 650n

Hence, the simplified expression for the total cost is 124000 - 650n

<h3>Find the cost if 65 workers choose desktop computers.</h3>

This means that n = 65.

So, we have:

Total cost = 124000 - 650* 65

Evaluate

Total cost = 81750

Hence, the cost if 65 workers choose desktop computers is 81750

Read more about expressions at:

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2x+6=96
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Can someone please help me

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Answer:

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Step-by-step explanation:

Lateral Area:

We have four congruent triangles with base b = 16cm and height h = 12cm.

The formula of an area of a traingle:

$A_\triangle=\dfrac{bh}{2}$

Substitute:

$A_\triangle=\dfrac{(16)(12)}{2}=(8)(12)=96\ cm^2$

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$S.A.=B+L.A.$

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Wich of the following equations would NOT contain the point (4,12)

nlexa [21]

Given:

The given point is (4,12).

To find:

The equation that would NOT contain the point (4,12).

Solution:

We need to check each equation for the point (4,12).

In option A, the given equation is:

$y=-2x+20$

Putting $x=4$ , we get

$y=-2(4)+20$

$y=-8+20$

$y=12$

This equation contains the point (4,12).

In option B, the given equation is:

$y=\dfrac{1}{2}x+8$

Putting $x=4$ , we get

$y=\dfrac{1}{2}(4)+8$

$y=2+8$

$y=10$

This equation does not contain the point (4,12).

In option C, the given equation is:

$y=-\dfrac{1}{2}x+14$

Putting $x=4$ , we get

$y=-\dfrac{1}{2}(4)+14$

$y=-2+14$

$y=12$

This equation contains the point (4,12).

In option D, the given equation is:

$y=\dfrac{3}{4}x+9$

Putting $x=4$ , we get

$y=\dfrac{3}{4}(4)+9$

$y=3+9$

$y=12$

This equation contains the point (4,12).

Only the equation in option B does NOT contain the point (4,12). Therefore, the correct option is B.

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