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timofeeve [1]
4 years ago
5

Which equation represents a proportional relationship?

Mathematics
2 answers:
bonufazy [111]4 years ago
4 0
It's the first one. y = 3x
proportional means they are just some multiple of the other.
Klio2033 [76]4 years ago
3 0
Y=3x hope this helps 
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In a candy bar, 165 calories are from sugar. There are 250 calories in the candy bar. What percent of the calories are from suga
icang [17]
You can simply find out the percentage of the calories from the sugar with this formula :

165/250 x 100% 

You will find out that the percentage would be 66 %

hope this helps


4 0
3 years ago
Read 2 more answers
Right triangle, hypotenuse =10 short= 5 what does the long leg equal
Gekata [30.6K]
15 = 10 +5 tha is my answer to <span>Right triangle, hypotenuse =10 short= 5 what does the long leg equal

</span>
4 0
3 years ago
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IVE BEEN ASKING FOR HOURS!!!!!! PLEASE HELP ME ANYONE!!!!! Juliet coaches softball and soccer. she coaches both sports for 15 ho
IrinaK [193]

Answer:

x + y = 15

y = 3x + 1.5

x + (3x + 1.5) = 15

Step-by-step explanation:

Let :

Soft ball practice = x

Soccer practice = y

y = 3x + 1.5

Total practice time :

x + y = 15 - - - (1)

x + 3x + 1.5 = 15

4x + 1.5 = 15

3 0
3 years ago
The diameter of Circle Q terminates on the circumference of the circle at (3,0) and (3,-7) . Write the equation of the circle in
Deffense [45]

Step-by-step explanation:

The center of a circle with 2 end points of a di diameter is the midpoint of the two endpoints.

The formula needed to find the minpoints is

(x,y) = (x2 + x1)/2, (y2 + y1)/2

x2 = 3

x1 = 3

y2 = 0

y1 = -7

midpoint = (3 + 3)/2, (0 - 7)/2

midp[oint = 3,-3.5

The midpoint is the center of the circle. Observe that the signs get changed when entering the values for (x,y)

So far what you have is (x - 3)^2 + (y + 3.5)^2 = r^2

To determine r^2 you need only take the distance from the center to oneof the endpoints.

r^2 = (3 - 3)^2 + (3.5 - 0)^2

r^2 = 3.5^2

r^2 = 12.25

Answer: (x - 3)^2 + (y + 3.5)^2 = 12.25

6 0
3 years ago
Jennifer can clean her room 2 hours, while John can clean the same room in 5 hours. How many hours would it take for them to cle
True [87]
For 1 hour:
- Jennifer can clean 1/2 of her room;
- John cal clean 1/5 of her room.
Both can clean: 1/2 + 1/5 = 5/10 + 2/10 = 7/10
1 hour  -------- 7/10
x hours---------- 1
x = 1 : 7/10 = 10/7 h = 1.42857 h ( or 1 h 25 min 43 s )
7 0
3 years ago
Read 2 more answers
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