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
soldi70 [24.7K]
3 years ago
10

If x varies directly as y, and y=6 when x=27, find x when y=2

Mathematics
1 answer:
shusha [124]3 years ago
6 0

Answer:

x = 9

Step-by-step explanation:

Given y varies directly as y then the equation relating them is

x = ky ← k is the constant of variation

To find k use the condition y = 6 when x = 27

27 = 6k ( divide both sides by 6 )

4.5 = k

x = 4.5y ← equation of variation

When y = 2 , then

x = 4.5 × 2 = 9

You might be interested in
X + y = 12
pantera1 [17]

Answer:

Step-by-step explanation:

-22

8 0
3 years ago
Write the number that is 10 more than 98 complete this number sentence. 12 is 1 more than --- and 1 less than ---
AVprozaik [17]
98 + 10 = 108

<span>12 is 1 more than 11

and 1 less than 13

Hope this helps!</span>
3 0
3 years ago
Mother paid 22.10 for 2.6 pounds of steak. what is the price per pound?
neonofarm [45]

Answer:

$8.50

Step-by-step explanation:

Divide the price by size so 22.10/2.6!

6 0
3 years ago
You are the manager of a restaurant that delivers pizza to college dormitory rooms. You have just changed your delivery process
lozanna [386]

Answer:

1.4000 ;

0.0807 ;

1.69 ;

Fail to reject the Null

Step-by-step explanation:

Given :

μ = 21 minutes

x = 22.4 minutes

Sample size, n = 36

Standard deviation, s = 6

H0: μ ≥ 21

H1: μ < 21

Test statistic : (x - μ) ÷ s/sqrt(n)

Test statistic : (22.4 - 21) ÷ 6/sqrt(36)

Test statistic : 1.4 ÷ 1

Test statistic = 1.4000

Pvalue : Using the Test statistic value at α = 0.05 ; One - tail test = 0.0807

The t critical value using a critical value calculator ; DF = (n - 1) = 36 - 1 = 35 ; α = 0.05 = 1.69

Decision region :

Reject H0 if

|Test statistic| > |critical value|

1.4 < 1.69

Hence, we fail to reject H0

There isn't enough evidence they delivery time has been reduced below previous mean

4 0
3 years ago
Can you help plz<br><br> EEEEEEEEEEEEEEEEEEEEEE
Sonja [21]

Answer:

V = 125 cm³

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Geometry</u>

Volume of a Cube Formula: V = a³

  • <em>a</em> is any side length

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

<em>a</em> = 5 cm

<u>Step 2: Find Volume</u>

  1. Substitute in variables [Volume of a Cube Formula]:                                    V = (5 cm)³
  2. Evaluate exponents:                                                                                         V = 125 cm³
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help on 3, 4 and 5 !!
    8·1 answer
  • I do not understand this im lost
    8·2 answers
  • (19.28) To estimate the mean score μ of those who took the Medical College Admission Test on your campus, you will obtain the sc
    13·1 answer
  • (05.05 LC)
    8·1 answer
  • A class 4 truck weighs between 14,000 16,000 pounds what is the weight range in tons?
    14·1 answer
  • Can someone answer this for me please
    10·1 answer
  • What about 7/2 x 3 1/2
    14·1 answer
  • Solve the following system in any of the methods you prefer. (graphing, substitution, eliminating)
    11·1 answer
  • Solve by combining equations <br> PLS HELP!<br> 3x - 2y = 12<br> -3x+8y= -6
    8·1 answer
  • An individual is planning a trip to a baseball game for 15 people. Of the people planning to go to the baseball game, 10 can go
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!