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lisabon 2012 [21]
3 years ago
13

Which table shows a proportional relationship between weight and price?

Mathematics
1 answer:
Lyrx [107]3 years ago
8 0
The correct answer is

2 oz - $4
4 oz - $8

In this pattern the next numbers would be:

6 oz - $12
8 oz - $16
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Help with this question please?
tatuchka [14]

Answer:

  x^2/25 +y^2/9 = 1

Step-by-step explanation:

You can think of an ellipse as a circle with a different scale factor in the x-direction than in the y-direction. When either dimension is stretched by a factor of k, the corresponding variable (v) is replaced by (v/k).

Here, the unit circle

  x^2 +y^2 = 1

is stretched by a factor of 3 vertically (in the y-direction) and a factor of 5 horizontally (in the x-direction). That means we can replace x with (x/5) and  y with (y/3) in the above equation to get ...

  (x/5)^2 +(y/3)^2 = 1

Traditionally, the denominator is written as a number, not a square, so the equation would be ...

  x^2/25 +y^2/9 = 1

4 0
3 years ago
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krek1111 [17]
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3 years ago
Translate into algebraic exprssion. The sum of 20 and twice x..
Alex787 [66]

Answer:

2x+20

Step-by-step explanation:

hope this helps!

The sum is addition and twice x is 2 times x and thats 2x and then add 20 to it.

5 0
3 years ago
At the zoo, three adult lions together eat 250 pounds of food a day. If two more adult lions joined the group and ate food at th
patriot [66]

416.67 pounds of food should be given all five lions each day

<em><u>Solution:</u></em>

Given that, three adult lions together eat 250 pounds of food a day

Thus, 3 adult lions = 250 pounds of food per day

Two more adult lions joined the group and ate food at the same rate as the original three

Now number of adult lions = 3 adult lions + 2 adult lions = 5 adult lions

Let "x" be the food ate by 5 adult lions

Thus we can say,

3 adult lions = 250 pounds of food per day

5 adult lions = "x" pounds of food per day

This forms a proportion and we can solve the sum by cross multiplying

\frac{3}{5} = \frac{250}{x}\\\\3 \times x = 250 \times 5\\\\3x = 1250\\\\x = 416.67

Thus 416.67 pounds of food should be given all five lions each day

8 0
3 years ago
In circle H, HJ¯¯¯¯¯ is a radius and JK¯¯¯¯¯ is a tangent segment. Which statement must be true?
Archy [21]
The correct answer is D) ∠HJK is a right angle.

The representation of this problem is shown in the figure below. The segment that goes from the center of a circle to a point of it is the radius. For each point this segment strikes radially the circle, so given that in this very point there is a tangent segment, then the conclusion is that ∠HJK must be a right angle.<span />

7 0
4 years ago
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