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Mekhanik [1.2K]
2 years ago
13

1.Which statement about the equation is true? x + 2 = x + 4 2. 5(w−1)−2=5w+7

Mathematics
1 answer:
Marysya12 [62]2 years ago
7 0

Answer:

Both equations have no solution.

Step-by-step explanation:

The first equation is:

x + 2 = x + 4

Group the similar terms to get:

x  - x =  4 - 2

0 =  - 2

This equation has no solution because

0 \ne - 2

The second equation is

5(w - 1) - 2 = 5w + 7

We expand the parenthesis to obtain:

5w - 5 - 2 = 5w + 7

5w - 7= 5w + 7

Group similar terms:

5w -5w = 7 + 7

0 = 14

This equation does not also have solution because

0 \ne14

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The morning announcements said that two out of every seven sixth-grade students in the school have an overdue library book. Jasm
gregori [183]

Answer:

We need to know how many students are in sixth grade and compare the real number with the 84 sixth graders that Jasmine claims to be.

Step-by-step explanation:

We would need to know how many students are in sixth grade to determine who is right. If two students out of seven have an overdue library book and grace claims that 24 of them are overdue by that means, what we would need to do is divide the allegedly 24 students between 2. Now we have 12 pairs of students that have overdue books. For every pair of students in sixth grade that have overdue books, seven students don’t have overdue books, so now we multiply 12 pairs of students with overdue books times 7 students who don’t have overdue books. By Jasmine calculation then, sixth grade have 84 students.  

If sixth grade have indeed 84 students, Jasmine is right. If there are not 84 students in sixth grade, she is wrong. Grace is right if there are fewer students than 84 in sixth grade.

Have a nice day! :D

6 0
3 years ago
The sum of two numbers is 104. The larger number is 3 more than the smaller number.
alexdok [17]
50.5 and 53.5
104-3=101 divided by 2=50.5 50.5+3 equals 53.5. 50.5+53.5=104
5 0
2 years ago
Given that 7x - 3y = 23
Triss [41]
7x - 3(-2) = 23
7x - - 6 = 23 (two minuses make a plus)
so it’s gonna be 7x + 6 = 23
Now you have isolate you x, so move everything else to the other side, but remember to change your sign when transferring to the other side

7x = 23 - 6
7x = 17
To isolate x in this multiple, you divide by 7 (because the inverse of multiplication is division)
x = 17/7
7 0
3 years ago
What's X? to: <br> 15x - 7x = (-52) - 5x
Studentka2010 [4]
-4

Because 15x-7x= 8x
8x+5x= 13x
13x= -52
-52 / 13= -4
x = -4

6 0
3 years ago
Read 2 more answers
Compute the missing data in the table for the following exponential function
kramer

Answer:

d. 1

Step-by-step explanation:

The base for this "exponential" function is sufficiently close to 1 that the function looks linear. The value corresponding to x=0 seems to be 1.00. Rounded to tenths, it is 1.0.

3 0
3 years ago
Read 2 more answers
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