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STatiana [176]
3 years ago
11

Determine whether y varies directly with x. If so, find the constant of variation and write the equation.

Mathematics
1 answer:
Masja [62]3 years ago
5 0

Answer:

Last option

Step-by-step explanation:

As per graph,

  • this is linear function
  • x=3 ⇒ y=1
  • x=-3 ⇒ y=-1
  • x=0 ⇒ y=0

Then y= 1/3 x

so answer is yes; k=1/3 and y=1/3x

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Richard and Teo have a combined age of 26 . Richard is5 years older than twice​ Teo's age. How old are Richard and​ Teo?
loris [4]

Answer:Teo's age = 7 years ,Richard's age = 19 years

Step-by-step explanation:

Step 1

Let Teo's age be represented as x

Such that Richard 's age = 5 + 2x

and their combined ages equaling 26 can be expressed as

x + 5+ 2x = 26

Step 2 --- SOLVING

x + 5+ 2x = 26

3x+ 5= 26

3x= 26-5

3x= 21

x = 21/3

x = 7

Teo's age = 7 years

Richard's age = 5+2x= 5 + 14= 19 years

8 0
3 years ago
Write twenty eight and sixty five thousandths as a decimal!
tangare [24]

Answer:answer is 28.00065 hope this helps



Step-by-step explanation:


3 0
3 years ago
Help me solve this question please
Vanyuwa [196]

Answer:

Step-by-step explanation:

3 0
2 years ago
3(6d-24)=6(12+3d)<br> i need help
Alexxandr [17]

Answer:

No solutions

Step-by-step explanation:

Let's solve your equation step-by-step.

3(6d−24)=6(12+3d)

Step 1: Simplify both sides of the equation.

3(6d−24)=6(12+3d)

(3)(6d)+(3)(−24)=(6)(12)+(6)(3d)(Distribute)

18d+−72=72+18d

18d−72=18d+72

Step 2: Subtract 18d from both sides.

18d−72−18d=18d+72−18d

−72=72

Step 3: Add 72 to both sides.

−72+72=72+72

0=144

Answer:

There are no solutions.

5 0
3 years ago
15 points !!!! Diameter Radius Area Circumference of 84mm
SSSSS [86.1K]

Answer:

lets \:  \:  \: find \:  \: the \:  \: radius \\  = 2\pi \: r \\  = 2\pi \: r = 84 \\  =  \frac{2\pi \: r}{2\pi }  =  \frac{84}{2\pi}  \\  = r = 13.37mm

lets \:  \:  \: find \:  \: the \:  \:  \: area \\  = \pi {r}^{2}  \\  = \pi \times  {13.37}^{2}  \\  = 561.55 {mm}^{2}

lets \:  \:  \: find \:  \:  \: the \:  \: diameter \\  = d = 2r \\  = d = 2 \times 13.37 \\  = d = 26.74mm

6 0
3 years ago
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