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
Allisa [31]
3 years ago
13

Solve for x 2/(7x) = 6/5 5/21 -21/5 21/5 I don't know - 5/21

Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0
The answer is:  [A]:  " \frac{5}{21} " .
________________________________________
Given: 

2/ (7x) = 6/5; 

→  (6/5) * (7x) = 2 ; 

42x / 5 = 2 ; 

42x = 2*5 ; 

42x = 10 ; 

42x /42 = 10/42 ; 

x = 10/42 = (10÷2) / (42÷2) = 5/21 ; 

x = \frac{5}{21} ;

→  which is:  Answer choice:  [A]:  " \frac{5}{21} " .
__________________________________________________
You might be interested in
the local hardware store wants to increase their inventory. Last year 15 electric screwdrivers cost them 300.how much would 45 s
Harman [31]
One way of doing this is to write the equation of ratios (15 screwdrivers / 45 screwdrivers) = ($300 / x).    Solve this equation for x.  To do this, you might try multiplying both sides of this equation by x to eliminate fractions.

Another way is to obtain the unit cost of each screwdriver and then multiply the result by 45 screwdrivers.
7 0
2 years ago
PLEASE HELPP PRE CAL!!
Snezhnost [94]

Step-by-step explanation:

tan x = 3/4

Tangent is opposite over adjacent, so draw a right triangle with angle x where the opposite side is 3 and the adjacent side is 4.

Use Pythagorean theorem to find the hypotenuse:

c² = 3² + 4²

c² = 25

c = 5

Sine is opposite over hypotenuse, so:

sin x = 3/5

8 0
3 years ago
Plot a graph for the following data recorded for an object falling from rest
shusha [124]
  1. The kind of curve obtained is linear.
  2. The relationship between the variables is direct variation.
  3. After 4.5 seconds, I expect the velocity to be equal to 140 ft/s.
  4. The amount of time required for the object to attain a speed of 100 ft/s is 3.2 seconds.

<h3>What is a graph?</h3>

A graph can be defined as a type of chart that's commonly used to graphically represent data on both the horizontal and vertical lines of a Cartesian coordinate, which are the x-axis and y-axis.

In this exercise, you're required to plot a graph for the data (velocity and time) recorded for an object that is falling from rest.

Based on the graph for the data (see attachment), we can logically deduce the following points:

  • The kind of curve obtained is linear.
  • The relationship between the variables is direct variation.
  • After 4.5 seconds, I expect the velocity to be equal to 140 ft/s.
  • The amount of time required for the object to attain a speed of 100 ft/s is 3.2 seconds.

Read more on graphs here: brainly.com/question/25875680

#SPJ1

Complete Question:

Plot a graph for the following data recorded for an object falling from rest

a. What kind of a curve did you obtain?

b. What is the relationship between the variables?

c. What do you expect the velocity to be after 4.5 s?

d. How much time is required for the object to attain a speed of 100 ft/s?

7 0
1 year ago
3, 9, 81, 243 . . . is an example of an infinite arithmetic series.. True or false?
Mumz [18]

The statement “3, 9, 81, 243 is an example of an infinite arithmetic series” is FALSE. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

3 0
3 years ago
Read 2 more answers
Fill in the blanks below with the correct units​
stepan [7]

Answer:

a= ft is the unit

b=g(gram) is the unit

c= percent % is the answer

8 0
3 years ago
Other questions:
  • Determine whether a triangle with sides .20 inches 48 inches and 52 inches long is a right triangle. Justify your answer.
    10·1 answer
  • Jeff helped repair one half of the bicycles in a bike shop last week. If jeff worked on 5 bicycle, how many bicycles did the sho
    13·1 answer
  • Find the endpoint of segment CD if D(-3, 1/2) and the midpoint is (-1/2, 3).
    15·1 answer
  • What is the slope of a line with the given coordinates (6,-4) and (-3,-7)
    15·1 answer
  • The equation models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretc
    15·1 answer
  • What statements are true about a kite
    10·1 answer
  • The following data was obtained from 32 people aged 25-29 who were asked how many hours of TV they watched per week.
    11·1 answer
  • Johnny picked 3 pounds of strawberries. That afternoon, Johnny's sister ate 2/3 of the strawberries. How many pounds of strawber
    12·2 answers
  • In ΔKLM, the measure of ∠M=90°, the measure of ∠K=75°, and LM = 6.3 feet. Find the length of KL to the nearest tenth of a foot.
    5·2 answers
  • Pleas help I need this
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!