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Jlenok [28]
2 years ago
8

Your work or words should justify your answer (explain how you know). As a math teacher, Josie frequently makes photocopies of f

un activities for her students to do. When the copies come out of the copy machine, they form a stack. This table shows the relationship between the number of copies in the stack, x, and the height (in millimeters) of the stack, y. x (copies) y (millimeters) According to the values in the table, do x and y have a proportional relationship? yes no​

Mathematics
1 answer:
Doss [256]2 years ago
7 0

Answer:

Yes, because by dividing x by his equivalent y, you find a constant of proportionality being 10.

x / y = 10

Step-by-step explanation:

20 / 2 = 10

50 / 5 =10

60 / 6 = 10

70 / 7 = 10

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14) What is the distance between −2 + 1 and 4 + 5 a) √10 b
Svetllana [295]

Answer:

\sqrt52

Step-by-step explanation:

(-2,1)=(x1,y1)

(4,5)=(x2,y2)

d=?

d=\sqrt(4+2)2 + (5-1)2\\\sqrt(6)2+(4)2\\\sqrt36+16\\\sqrt52\\

7 0
2 years ago
Jim's backyard is a rectangle that is 15 5/6 yards long and 10 2/5 yards wide. Jim buys sods in pieces that are 1 1/3 yards long
Ne4ueva [31]

We are given

Jim's backyard:

Length is

L=15\frac{5}{6} =\frac{95}{6} yards

width is

W=10\frac{2}{5} =\frac{52}{5} yards

Since, this is rectangle

so, we can find area of rectangle

A=L*W

A=(\frac{95}{6})*(\frac{52}{5})

A=\frac{494}{3} yard^2

Area of one sod:

length is

l=1\frac{1}{3} =\frac{4}{3} yards

width is

w=1\frac{1}{3} =\frac{4}{3} yards

Since, it is rectangle in shape

so,

Area=l*w

A=\frac{4}{3}*\frac{4}{3}

A=\frac{16}{9}yard^2

Number of pieces of sod:

we can use formula

Number of pieces of sod = (area of Jim's backyard)/(area of one sod)

N=\frac{\frac{494}{3} }{\frac{16}{9} }

now, we can simplify it

N=\frac{741}{8} pieces need ..............Answer

7 0
3 years ago
You and your friend collect 180 cans for a food drive. The ratio of cans you collected to cans your friend collected is 4 to 5.
marissa [1.9K]
Are you looking for the number of cans you and your friend each collected? If yes, here is the solution:

Let x be the number of cans.

4x + 5x = 180
        9x = 180
     9x/9 = 180/9 (divide both sides of the equation by 9)
          x = 20

Now, substitute the values:
4(20) + 5(20) = 180
       80 + 100 = 180
               180 = 180

Therefore, you collected 80 cans and your friend collected 100 cans.
6 0
3 years ago
Triangle CAT was rotated to create triangle C'A'T'. Describe the transformation using details and degrees.
inysia [295]

Answer:

Triangle CAT was rotated 90 degrees clockwise around the origin.

Step-by-step explanation:

The coordinate points for A and A' are (-3,3) and (3,3). The change from A to A' from quadrant 2 to 1 is a 90 degree rotation in the clockwise direction. Each of the points are equal distance from the origin (0,0) and this is the center of rotation.

6 0
3 years ago
PLZ I REALLY NEED THIS RIGHT AWAY!!! I’ll GIVE YOU BRAINLIST!!!
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They are all being multiplied by 4
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3 years ago
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