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Elena-2011 [213]
3 years ago
13

2x + 8 = 4x - 22 7th math

Mathematics
2 answers:
Leviafan [203]3 years ago
4 0

Answer:

x = 15

Step-by-step explanation:

2x + 8 = 4x - 22

Subtract 2x from each side

2x-2x + 8 = 4x-2x - 22

8 = 2x-22

Add 22 to each side

8+22 = 2x-22+22

30 = 2x

Divide by 2

30/2 = 2x/2

15 =x

irina [24]3 years ago
4 0

Answer:

15

Step-by-step explanation:

2x+8=4x-22 add all the like terms

-2x+8=-22

-2x=-30 divide both side by -2

x=15

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Thirty more than one half of the students at at canyon middle school are in band.Five less than three fifths of the students are
Fed [463]

Answer:

Students at canyon middle school = 350

Step-by-step explanation:

Students at canyon middle school = x

Band = 1/2x + 30

Athletics = 3/5x - 5

athletics.If the number of students who are in band is equal to the number of students in athletics

1/2x + 30 = 3/5x - 5

1/2x - 3/5x = -5 - 30

5x-6x/10 = -35

-x/10 = -35

= -x(1/10)= -35

x = -35 ÷ -1/10

= -35 × -10/1

= 350

x = 350

Students at canyon middle school = 350

4 0
3 years ago
A total of 428 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t
aalyn [17]
321 adult tickets were sold use the formula to solve
108 student tickets were sold 
6 0
3 years ago
3. 5 bananas cost $2. At this rate, how much do 4 bananas cost?
Annette [7]

Answer:

$1.60

Step-by-step explanation:

<em><u>Write out a proportion. </u></em>

5 bananas/$2 = 4 bananas/$x

<em><u>Simplify the proportion, by cross multiplying. </u></em>

2 times 4 equals 8, then divide 8 by 5, which will give you our variable x.

8/5 is the same as 1.60, so the cost of 4 bananas will cost $1.60.

Hope this helped,

Philip

Brainliest always appreciated! <3

<em><u /></em>

6 0
3 years ago
The student relations committee of a college consists of 2 administrators, 3 faculty members, and 5 students. Four administrator
Nana76 [90]

Step-by-step explanation:

4 administrator are eligible and  the student relations committee has only 2 administrator there are C (4,2) ways of choosing the administrators for the student relations committee

similarly for faculty  members  ways (8,3)       and  for students C (20,5)

the number of possible committee = 4!/2!2!  ×  8!/3!5!   ×20!/5!15!

                                                          = 6  ×56 ×15504

                                                          = 5,209,344

6 0
3 years ago
Five times the number subtracted from six is triple the number
alexira [117]
6-5x=3x
-5x-3=-6
-8=-6
x=-6/-8
= 3/4 or 0.75
7 0
3 years ago
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