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3 years ago

When X equals eight, Y equals 20 find Y when x equals 42

Mathematics

2 answers:

snow_tiger [21]3 years ago

6 0

If x equals 8 but then equals 42 then you multipled by 5.25, so multiply 20 by 5.25. Which is 105, then y equals 105.

gavmur [86]3 years ago

4 0

Y is equal to 105 because you divide 42 by 8 and get 5.25 (the amount it increased). then you multiply by its previous version 20 to get 105.

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Find the slope given the following ordered <br><br> 2,-3 and 6,-13

saw5 [17]

You would have to use this equation : y2-y1/x2-x1 = slope

So it would be -13 +3/6-2= -10/4

Simplify it and you get : -5/2

Slope is -5/2

7 0

3 years ago

Read 2 more answers

An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir

finlep [7]

Answer:

The area of the copper circle is <u>31.4 inches</u>.

Step-by-step explanation:

Given:

An artist used silver wire to make a square that has a perimeter of 40 inches.

She then used copper wire to make the largest circle that could fit in the square, with perimeter of 40 inches.

Use 3.14 to represent π.

Now, to find the area of the copper circle.

Perimeter of square = 40 inches.

So, we get the side of square by putting formula:

$Perimeter=4\times side$

$40=4\times side$

Dividing both sides by 4 we get:

$10=side.$

$Side=10\ inches.$

Now, as the side of square is 10 inches it is the diameter of the circle as the square is fit inside the circle:

For getting the area of circle we find the radius:

Radius (r) = $\frac{Diameter}{2} \\=\frac{10}{2}= 5\ inches.$

Now, putting the formula to get the area of the circle:

$Area=2\times \pi \times r$

$Area=2\times 3.14\times 5$

$Area=31.4\ inches.$

Therefore, the area of the copper circle is 31.4 inches.

6 0

3 years ago

Jamal used 1/3 yard of ribbon to tie a package and 1/6 yard of ribbon to tie a bow how many yards of ribbon did Jamal use?

DaniilM [7]

Answer:

1/2 yard

Step-by-step explanation:

1/3 yard x 6/6 = 6/18 yard

1/6 yard x 3/3 = 3/18 yard

6/18 + 3/18 = 9/18 = 1/2 yard

6 0

3 years ago

Find NP from the rectangle

serious [3.7K]

The diagonals of a rectangle are equal and bisect each other.

NQ= 2×5 =10

Using Pythagoras theoram,

PQ²+NP²=NQ²

4²+ NP²= 10²

NP²= 100-16

NP²= 84

NP =√84

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3 years ago

Evaluate 15+w for w=6

svetlana [45]

Answer:

Step-by-step explanation:

To evaluate, substitute w = 6 into the expression, that is

15 + w = 15 + 6 = 21

3 0

3 years ago