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hichkok12 [17]
3 years ago
14

Which graph represents a proportional relationship?

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0

Answer:

Step-by-step explanation:

The first one as it is a sloping straight  passing through the origin.

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klaus was replacing the roof on his house. He used 420 nails to attach al the pieces of wood. Each piece of wood needed 7 nails
hjlf

There were 20 pieces of wood left.


Work:

420 ÷ 7 = 60

60 - 40 = 20


Your answer is 20.


Hope this helps!

6 0
3 years ago
If the circumference is 31.4, what are the radius and the area?
jekas [21]

Answer:

radius = 5 units

area of a circle = 15.7units²

Step-by-step explanation:

given that the circumference of a circle = 31.4

radius = ?

recall that the formulae for finding the circumference of a circle  =  2πr

circumference of a circle  = 2 x 3.14 x r

31. 4 = 6.28r

divide both sides by the coefficient of r which is 6.28

31.4/6.28 = 6.28r/6.28

5 = r

radius = 5 units

therefore the radius of the circle whose circumference is 31.4 units is evaluated to be 5units

to find the area of the circle

recall the formula = πr²

area of a circle = 3.14 x 5²

area of a circle = 3.14 x 25

area of a circle = 15.7units²

7 0
3 years ago
I need help so i know what to do for test ?
Paraphin [41]

Answer:

y = -4

Step-by-step explanation:

See attached worksheet.

6 0
2 years ago
What is an example of a one step equation that would use multiplication
velikii [3]

Answer:

here is a photo

5 0
3 years ago
Lillie can pack 12 boxes of pasta in an hour and a half find the unit rate
Gnom [1K]

12 boxes of pasta packed in an hour and half then boxes packed in 1 hour will be 12/1.5 = 8

thus 8 boxes packed in an hour . this is called the unit rate, so the answer will be 8

4 0
3 years ago
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