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3 years ago

14. A computer originally costs $1550 is on sale for 15% off. How much is

Mathematics

1 answer:

sveticcg [70]3 years ago

7 0

232.50

1550 / 100 is 15.5 so 15.5 = 1%, 15.5 x 15 = 232.5 = 15%

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ASAP PLS I NEED IT AND TY

mars1129 [50]

<h2>Dilations and Scale Factors</h2>

When we're solving with scale factors, we either divide or multiply.

If the shape becomes larger, we multiply to get the new length.

If the shape becomes smaller, we divide to get the new length.

<h2>Solving the Question</h2>

We're given:

Original side length is 2.5 units
Scale factor = 6

Because the shape becomes larger, we have to multiply the original side length by the scale factor, 6, to get the new side length.

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Therefore, the missing side length is 15 units.

<h2>Answer</h2>

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Answer:

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Step-by-step explanation:

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3 years ago

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Yuki888 [10]

Answer:

<em>Student 2 is incorrect because he didn't use the formula properly</em>

Step-by-step explanation:

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

$C(t)=C_o\cdot(1-r)^t$

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C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

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The initial value of the item is Co=$1000, the rate of decay is r=40%=0.4, and the time is t=3 years.

Substituting into the formula:

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Student 2 is incorrect because he didn't use the formula properly

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2 years ago

3. In the figure below, E is on AD and C is on BD. The dimensions given are in meters. What is the length, in meters, of CD?

damaskus [11]

Answer:

C. 3,960

Step-by-step explanation:

∆ADB ~ ∆EDC. Therefore,

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Cross multiply

$5*x = 3(2,640 + x)$

$5x = 7,920 + 3x$

5x - 3x = 7,920

2x = 7,920

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2 years ago

Is the airplanes altitude a function of time

Natali5045456 [20]

Answer:

yes because any input of time results in only one output of altitude

yes because the airplane increases and decreases in altitude at the same rate

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2 years ago