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
Katarina [22]
3 years ago
9

Y varies directly with x, and y = 120 ib when x = 50 ib. Find y if x = 40 ib

Mathematics
1 answer:
Llana [10]3 years ago
8 0
Y = kx is the direct variation equation.
Use the x and y given to find k. After finding k use it to write a new equation.
120=k*50
Divide by 50 on both sides
120/50=k 12/5=k
y = (12/5)(40) y=96
You might be interested in
Find the values of x and y using the give chord, secant, and tangent lengths
garri49 [273]

Answer: 7

Step-by-step explanation:

7

3 0
3 years ago
What is the solution set of x^2+y^2=26 and x-y=6?
lubasha [3.4K]
I think it's B because it's makes the most sense
5 0
3 years ago
a cell phone company offers two different monthly plans.plan a charges $41 for unlimited cell phone minutes plus $0.10 per text
tiny-mole [99]

41+0.10x = 31+0.15x

10 +0.10x=0.15x

10=0.05x

x=10/.05

x= 200 text messages


check 200*0.10 = 20 +41 =61

200*0.15 = 30+31 = 61

 they equal each other so number of texts is 200

6 0
3 years ago
Eric's class consists of 12 males and 16 females. If 3 students are selected at random, find the probability that they
Reptile [31]

Answer:

The probability that all are male of choosing '3' students

P(E) = 0.067 = 6.71%

Step-by-step explanation:

Let 'M' be the event of selecting males n(M) = 12

Number of ways of choosing 3 students From all males and females

n(M) = 28C_{3} = \frac{28!}{(28-3)!3!} =\frac{28 X 27 X 26}{3 X 2 X 1 } = 3,276

Number of ways of choosing 3 students From all males

n(M) = 12C_{3} = \frac{12!}{(12-3)!3!} =\frac{12 X 11 X 10}{3 X 2 X 1 } =220

The probability that all are male of choosing '3' students

P(E) = \frac{n(M)}{n(S)} = \frac{12 C_{3} }{28 C_{3} }

P(E) =  \frac{12 C_{3} }{28 C_{3} } = \frac{220}{3276}

P(E) = 0.067 = 6.71%

<u><em>Final answer</em></u>:-

The probability that all are male of choosing '3' students

P(E) = 0.067 = 6.71%

3 0
3 years ago
I need help to solve the problem
natta225 [31]

Since all triangles equal 180 degrees. You will subtract (128 + 23) from 180.

180 - 146 is 34 degrees.

x=34

8 0
3 years ago
Read 2 more answers
Other questions:
  • What are the solutions for x when y is equal to 0 in the following quadratic
    11·1 answer
  • How to master Algebra 1
    8·2 answers
  • What is 7/8 in decimal form
    14·1 answer
  • Selma hypothesizes that the mass of a sample of water will not change if it is frozen. She conducts an experiment to test her hy
    11·2 answers
  • What is 1 and 2/5× 7
    12·2 answers
  • Obtain all zeros of x^4-7x^2+12, if two numbers of its zeros are √3 and -√3
    12·1 answer
  • Solve for x: 3/4 x + 5/8 = 4x
    11·1 answer
  • Are they Equivalent why or why not?
    6·1 answer
  • Solve the part that need solving.
    7·1 answer
  • W(t) = -21 + 1; Find w(-7)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!