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blagie [28]
2 years ago
8

Ivory created a scaled copy of rectangle A.

Mathematics
1 answer:
9966 [12]2 years ago
8 0

The scale factor that Ivory used to create their scaled copy is;

<u><em>Scale is 1 interval on graph represents 4 units of the rectangle. This is 1:4 ratio.</em></u>

  • From the given image, we can see that the y-axis of the rectangle has 3 intervals while the x-axis has 1 intervals

  • Now, from the image, we are told that the area of the scaled copy is 48 square units.

What this means is that the area of the triangle she is trying to represent with that graph is 48 square units.

  • Now, if one interval of the graph is x-units, then it means;

length; y-axis = 3x units

width; x-axis = x units

  • Area of a rectangle is given by;

Area = Length × width

Thus;

3x * x = 48

3x² = 48

x² = 48/3

x² = 16

x = √16

x = 4

<em>Thus, 1 interval on the graph represents 4 units of the rectangle.</em>

Read more at; brainly.com/question/17182684

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A rectangles width is one-fourth of its length . its area is 9 square units
Paha777 [63]

Answer:

Length = 6

Width = 3/2

Step-by-step explanation:

You can choose to go about this question in lots of different ways, but this is how i did it. I drew a diagram of the rectangle and labeled it: the height/length as x and the width as x/4 (they told us the width is a quarter of the length). They also told us that the area is 9 square units.

We know that length x width = area

So: length x width = 9

I'm gonna bring in the variables i used in the diagram, so:

x x \frac{x}{4} = 9

Keep solving:

\frac{x^{2} }{4}= 9

Times both sides by 4:

x^{2} = 36

Square root both sides for x:

<em>* remember that when you square root, its possible to have a positive or negative version of the value</em>

x = ±6

Since its impossible to have a negative length, we can say that x = 6.

X was just the variable we gave to the length of the rectangle, so now we know the length is 6. If you needed to find width as well, you can do 6/4, which simplifies to 3/2.

To double-check

- 6 x 3/2 should equal 9, since length x width = area

which it is, so we're correct!

Hope that helped : )

4 0
3 years ago
How many gallons of a 50​% antifreeze solution must be mixed with 80 gallons of 30​% antifreeze to get a mixture that is 40​% ​a
Bas_tet [7]
I don't know what the "six-step method" is, but I do know how to solve the problem:

Let x = number of gallons of 50% solution

amount of antifreeze in 50% solution = 0.50x
amount of antifreeze in 10% solution = 0.10(80) = 8
amount of 40% solution = 0.40(x+80) = 0.40x + 32

Then, 0.50x + 8 = 0.40x + 32

0.10x = 24

x = 240 gal
3 0
3 years ago
Is -4, 12, -36, 108, -324 arithmetic or geometric
kumpel [21]

Answer: Geometric

Step-by-step explanation: An arithmetic sequence is a sequence with a common difference. In other words, it has a number that is repeatedly added or subtracted to reach the next term. In this problem, that's not the case. We are not going up or down by the same number which means it's geometric.

4 0
3 years ago
Plz Help Right Now Please Answer All Questions!
prisoha [69]
<h2>Answer:</h2>

Your answers are all on the attachments and the explanations as well

Step-by-step explanation:

Click the attachments pleaseee!

hope this helped :3!

4 0
3 years ago
Read 2 more answers
It is estimated that 35% of households own a riding lawn mower. A sample 19 households is studied. What is the mean number of ho
hjlf

Answer:

The mean number of households who own a riding lawn mower is 6.65.

Step-by-step explanation:

For each household, there are only two possible outcomes. Either there is a riding lawn mower, or there is not. The probability of a household having a riding lawn mower is independent of other households. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

35% of households own a riding lawn mower.

This means that p = 0.35

A sample 19 households is studied.

This means that n = 19

What is the mean number of households who own a riding lawn mower

E(X) = np = 19*0.35 = 6.65

The mean number of households who own a riding lawn mower is 6.65.

6 0
3 years ago
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