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Evgen [1.6K]
3 years ago
11

PLS HELP ASAP An artifact is 4 times older than an antique book. In 200 years the artifact will be 3 times older as the book. Ho

w old is the artifact now?
Mathematics
2 answers:
Tresset [83]3 years ago
3 0

Answer: 1,600

Step-by-step explanation:

kozerog [31]3 years ago
3 0

Answer:

The present age of the artifact is 1,600 years

Step-by-step explanation:

let the present age of the artifact = x

let the present age of the book, = y

x = 4y ---- equation (1)

x + 200 = 3(y + 200) ------equation (2)

x + 200 = 3y + 600

substitute in the value of x

4y + 200 = 3y + 600

4y - 3y = 600 - 200

y = 400

Then, x = 4 x 400

x = 1,600 years

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Answer with steps thnx
expeople1 [14]

Answer:

The area is 432cm squared.

Step-by-step explanation:

To find the area, first you split the figure into 2 rectangles.

The rectangle facing up would be 8cm by 30cm, and the rectangle pointing to the left would be 8cm by 24cm (because you subtract 8 by 32). Next, with those numbers, you can easily find the area. 8cm x 30cm equals to 240cm squared, and 8cm x 24cm equals to 192cm squared. Lastly, you add the both of the areas together, 240cm and 192cm, and you get 432cm squared.

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3 years ago
Assuming a linear relationship between x and y, if the coefficient of correlation (r) equals -0.75, this means that:
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Since we are given that the relationship between x and y is linear. Therefore this means that the given equation takes the form of:

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where,

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However we should take note that the slope m is directly proportional to the coefficient of correlation. Since our coefficient of correlation is negative, this only means that the value of y is decreasing with increasing x, hence plot of y and x is descending with increasing x. Furthermore, this also tells that for every 1 unit increase of x, there is a 0.75 units decrease of y.

6 0
3 years ago
Evaluate the following expression. 6 squared -1
natita [175]

Answer:

35

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
one number is equal to the square of another. find the numbers if both are positive and their sum is 1122
statuscvo [17]

Answer:

One number is 561

The other number is 23.6854

Step-by-step explanation:

x = y^2                One number = the square of another

x + y^2 = 1122     The sum of the two numbers is 1122

Substitute y^2 in for x on the second equation.

y^2 + y^2 = 1122    Combine like terms on the left

2y^2 = 1122            Divide by 2

y^2 = 1122/2

y^2 = 561                Take the square root of both sides.

y = 23.6854            

x = y^2

x = 561

y^2 = 561


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3 years ago
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aivan3 [116]

Answer:

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this is not that long but I tried

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3 years ago
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