1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stich3 [128]
3 years ago
13

If y varies directly as x, and y is 48 when x is 6, which expression can be used to find the value of y when x is 2?

Mathematics
1 answer:
barxatty [35]3 years ago
4 0

The expression will be  y =8*2 or y = (48/6)*2

Step-by-step explanation:

The direct proportion is given if y varied directly as x

y∝x

When the proprtionality symbol is removed, a proportionality constant is introduced.

y = kx

as we know y = 48 when x = 6

48 = k * 6\\k = \frac{48}{6}\\k = 8

The equation will be:

y = 8x

So when x=2

y = 8*2

y = 16

Hence,

The expression will be  y =8*2 or y = (48/6)*2

Keywords: Proportion, Direct proportion

Learn more about proportion at:

  • brainly.com/question/4522984
  • brainly.com/question/4550858

#LearnwithBrainly

You might be interested in
A farmer had large herd of goats. Besides the 4 goats that slept in his bed, he had 7 barns full of goats. How many goats were i
fiasKO [112]
95-4=91 then 91 divided 7=13 (95-4) divided 7=13
6 0
3 years ago
5/6 - 2/3 divide by 4/5
ollegr [7]

Answer:

5/24

Step-by-step explanation:

Start with the first part of the probelm 5/6 - 2/3

You need to find a common denominator of 6 and 3

common denominator= 6

so change 2/3 to 4/6

now you can subtract the top values

5/6-4/6

5-6=1

keep the denominator the same

= 1/6

Now divide 1/6  by 4/5

to divide you are going to multiply by the reciprocal so instead of 4/5 we are going to flip it to 5/4

1/6 x 5/4

5x1=5 and 6x4=24

= 5/24

8 0
3 years ago
Can someone please help me in this question
Pie

Step-by-step explanation:

a) Let y = f(x) = 3x - 2x^2

f(-2) = 3(-2) - 2(-2)^2 = p

= -6 - 8

= -14

= p

f(2.5) = 3(2.5) - 2(2.5)^2 = q

= 7.5 - 12.5

= -5

= q

b) graphing

c) From the graph, you should be able to verify the following:

i) f(0.5) = 3(0.5) - 2(0.5)^2 = 1

ii) 0.5 = 3x - 2x^2 or x = 1.3, 0.2

iii) the maximum occurs at

f(0.75) = 1.125

d) the equation for the line of symmetry is x = 0.75

4 0
3 years ago
Alayaa crashed her car through a fence, ran over a garbage can and ran into a tree. The fence will cost $550 to repair, $50 to r
hodyreva [135]
She'll have to pay 20,605
3 0
3 years ago
Which would be the best method to use to solve the following equations? Explain your reasoning.
o-na [289]

A. square root property

3x^2-192=0\\x^2-66=0\\x^2=66\\x= -\sqrt{66} or \sqrt{66}

it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format

B. factorising

x^2-x-6=0\\x^2+2x-3x-6=0\\(x+2)(x-3)=0\\x+2=0  and  x-3=0\\x= -2 \\x= 3

i just felt like this was easier to factorise than the other 2 options left

C. Completing the square

x^2-6x-7=0\\(x-3)^2=0\\x= -1\\x= 7

same reason personal preference

D- Quadratic

x^2-17x-7=0\\x=\frac{-(-17)+\sqrt{(-17)^2-4(1)(-7)} }{2(1)} \\x=\frac{-(-17)-\sqrt{(-17)^2-4(1)(-7)} }{2(1)}\\x=17.4\\x=-0.402

the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal

7 0
3 years ago
Other questions:
  • A recursive rule for a geometric sequence is a1=4/9;an=3an−1
    14·2 answers
  • Which of these are equivalent to (10 x 18) (10 x s)​
    9·1 answer
  • What is the sum? -7 + 5 =sum
    14·2 answers
  • Which expression represents the greatest common factor (GCF) of 16 and 40? A. 2 x 2 B. 2 x 2 x 3 C. 2 x 2 x 5 D. 2 x 2 x 2
    5·2 answers
  • Rachel is bowling with her friends. her bowling ball has a radius of 4 inches. as she bowls she tracks the location of the finge
    14·1 answer
  • Rewrite 4a + 7a using the Distributive Property.
    5·1 answer
  • Susan has a piggy bank with 28 coins in it, all dimes and quarters. She has been collecting state quarters and so far has no rep
    10·1 answer
  • What is the relationship between the radius and the diameter of a circle?
    12·2 answers
  • What is 5.52×0.25 explain​
    14·1 answer
  • Cathy reads 12 pages of a book each day how many pages will she read in 4 days?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!