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
jok3333 [9.3K]
3 years ago
5

What is the solution to the equation? r/7.1=4.2

Mathematics
2 answers:
sweet [91]3 years ago
3 0

Answer: x=3.4

Step-by-step explanation:

0.5x + 4.2 = 5.9 \\ 0.5x = 5.9 - 4.2 \\ 0.5x = 1.7 \\ x = 1.7 \div 0.5 \\

Sav [38]3 years ago
3 0

Answer:

The answer is 29.82

Step-by-step explanation:

I took the exam.

29.82 / 7.1=4.2

You might be interested in
Divide. −1/9 ÷ 3/4 I NEED THE ANSWER NOW PLX I WILL GIVE BRAINLYEST!!!!!!!!!!!!!!!!!!
Vinil7 [7]

To do this, invert the second fraction and then multiply..

-1/9 x 4/3

= -1 x 4 = -4

= 9 x 3 = 27

Final answer = -4/27


6 0
3 years ago
Read 2 more answers
-2(3x-2) + 2x = -6X - 10
julsineya [31]

Answer:

x =  - 3

Step-by-step explanation:

- 2(3x - 2) + 2x =  - 6x - 10

=  >  - 6x - 4 + 2x =  - 6x - 10

=  >  - 4x - 4 =  - 6x - 10

=  >  - (4x + 4) =  - (6x + 10)

=  > 4x + 4 = 6x + 10

Keeping all like terms in L.H.S ,

=  > 6x - 4x = 4 - 10

=  > 2x =  - 6

=  > x =  \frac{ - 6}{2}  =  - 3

8 0
3 years ago
Two number cubes are rolled for two separate events: 
MatroZZZ [7]

Let us first make the sample space for the event A. The Sample Space will be:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5)

(5,1) (5,2) (5,3) (5,4)

(6,1) (6,2) (6,3)

As can be clearly seen the Sample Space for the event A has 30 elements in it.

Now, it is given in the question that the event A has already occurred and we need to find the probability of the event B occurring <u><em>given that the event A has already occurred.</em></u>

Now, as we can see, from the sample space, only 11 events out of the 30 are the events of interest to us. This is shown in bold below:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5)

(5,1) (5,2) (5,3) (5,4)

(6,1) (6,2) (6,3)

Thus, the probability that the event B occurs given that the event A has already occurred is:

P(B|A)=\frac{11}{30}\approx0.367

In percentage the required probability is 36.7% approximately.

3 0
3 years ago
A class made equal teams of 5 for basketball, and equal teams of 6 for vollyball.
Ann [662]
22. each sport needs at least two teams so multiply 5x2 and 6x2 then add the numbers. 10+12=22
6 0
3 years ago
WHICH IS A TRUE STATEMENT BASED ON THE DOT PLOTS BELOW 10 POINTS
Nata [24]

Answer:

C. Set B has the greater range.

Step-by-step explanation:

We can start out with listing out each set of data in a way that makes it easier to work with.

Set A:

20,20,30,30,40,40,40,40,40,50,50,60,60,60

Set B:

10,10,20,20,20,30,30,30,30,40,50,50,60

We can start by trying to eliminate answer options; starting with D.

To get the mean of a set of data, we need to add all numbers in the data set and then divide by the number of dots on the plot.

For Set B: 10+10+20+20+20+20+30+30+30+30+40+50+50+60=420 then divide by number of dots (14) 420/14=30 The mean of Set B is equal to 30.

Solve the mean for Set A to compare. The mean is 41. D is not true so we can eliminate this answer choice.

We can look at the median of both sets so that we can eliminate answer choice B. The median is the middle most point in the set of data.

Set A median: 40

Set B median: 30

We can eliminate B because it does not have the greater median.

On to option C: range.

To find the range of each data set, we subtract the smallest number from the biggest number.

Set A: 60-20=40

Set B: 60-10= 50

Set B does in fact have a greater range than Set A. Answer choice C is the correct option.

6 0
3 years ago
Other questions:
  • Imagine an investment with 3 possible outcomes. There's a 10% chance you'll LOSE the $1,000 you put in. There's an 80% chance yo
    13·1 answer
  • What is the domain of this function
    14·2 answers
  • An equilateral triangle has a perimeter of 15x3 33x5 feet. what is the length of each side?
    6·2 answers
  • What is the radical form of the expression?<br><br> (5x3y4)37<br> ↡
    7·1 answer
  • The population of Mexico in 2000 was approximately 103,970,000 and the land area was 761,700 square miles. The population increa
    7·1 answer
  • I will mark brainliest please help! <br>Find the are of the figure?​
    15·1 answer
  • The rectangular ground floor of a building has a perimeter of 780 ft. The length is 200 ft more than the width. Find the length
    11·1 answer
  • Solve for x if 2(5x + 2)^2 = 48
    10·2 answers
  • What is the radius of the circle?
    7·1 answer
  • 2x + 3y proportion to x+ 5y or x &amp; y this means <br>​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!