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shusha [124]
4 years ago
5

Solve for x. 7x/2 + 5 = 8 x = 91/2 x = 21/2 x = 26/7 x = 6/7

Mathematics
2 answers:
lara31 [8.8K]4 years ago
7 0

Answer:

Option (d) is correct.

x=\frac{6}{7}

Step-by-step explanation:

Given : 7\frac{x}{2}+5=8

We have to solve for x.

Consider the given expression 7\frac{x}{2}+5=8

Subtract 5 both side, we have,

7\frac{x}{2}=8-5

Simplify, we have,

7\frac{x}{2}=3

Multiply both side by 2, we have,

7x = 6

Divide both side by 7 , we have,

x=\frac{6}{7}

Thus, Option (d) is correct.

ludmilkaskok [199]4 years ago
5 0
<span>standard form 7/2</span>x − 3 = 0
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Can anyone answer (b)
lana [24]
The problem is, I don't think that you estimated for letter a, so you can't do letter b.
8 0
3 years ago
-12 = -6(-8n + 6) + 8(-4+n)<br> How do you solve this equation
ollegr [7]

Answer:

n=1

Step-by-step explanation:

distribute

-6 times -8n is =48n

-6 times 6 =-36

8 times -4 = -32

8 times n =8n

rewrite equation

48n-36+-32+8n=-12

48n+8n-36-32=-12

56n-68=-12

add 68 on both sides

=56

56n=56

n= 1

3 0
4 years ago
70 POINTS!! AND BRAINLIEST HELPPPPP!!!
DerKrebs [107]

Answer:

  1. 3000 girls
  2. 38 fishes
  3. 37 points
  4. 115 marbles
  5. 19 gray coloured cars

Step-by-step explanation:

Let the unknown values be x

1.

30 class mates = 1 class room

18 girls in 1 classroom

18 girls in 30 classmates

x girls in 5000 class mates

18\:girls= 30\:students\\x\:girls = 5000\:students\\\\Cross\:Multiply\\\\30x = 90000\\\\Divide\:both\:sides\:by\:30\\\frac{30x}{30} = \frac{90000}{30}\\ \\x = 3000\\= 3000 girls

2.

2.5\:miles = 12 \:fishes\\8\:miles = x\:fishes\\\\Cross\:Multiply\\2.5x = 96\\\\Divide\:both\:sides\:of\:the\:equation\:by\:2.5\\\\\frac{2.5x}{2.5}=\frac{96}{2.5}\\  \\x = 38.4\\Approximately \: =38\:fishes

3.

8\:minutes = 14\: points\\21 \:minutes = x \:points\\\\Cross\:Multiply\\8x = 294\\\\\mathrm{Divide\:both\:sides\:by\:}8\\\frac{8x}{8}=\frac{294}{8}\\\\Simplify\\x=\frac{147}{4}\\\\x = 36.75\\\\Approximately\:= 37\:points

4.

32\:marbles = 5\:inches\\x\:marbles = 18\:inches\\\\Cross\:Multiply\\5x = 576\\\\\mathrm{Divide\:both\:sides\:by\:}5\\\frac{5x}{5}=\frac{576}{5}\\\\x=\frac{576}{5}\\\\x =115.2\\= 115=\:marbles

5.

2 \: gray\:colour= 15\:cars\\x\:gray= 140\:cars\\\\Cross\:Multiply\\\\15x = 280\\\\\mathrm{Divide\:both\:sides\:by\:}15\\\frac{15x}{15}=\frac{280}{15}\\\\Simplify\\x=\frac{56}{3}\\\\x =18.666\\Approximately ;\\19

6 0
4 years ago
Read 2 more answers
In what quadrant would the ordered pair (-5, 4) be located?<br><br> I<br> II<br> III<br> IV
statuscvo [17]
Ok, so
 Quadrants are found on coordinate planes. So the first number tells you to go on the X axis. It goes this way ---------
you look on the left side side of the origin (zero) and go to -5
since the second umber will be found on the Y axis, and is positive, go up to 4.
That is how you find your point.  The qudrants are counted like this.
2 1 
3 4
The answer is Quadrant 2
Hope it helped☺
7 0
3 years ago
All of these have to be estimated using the chart shown^
umka21 [38]
Dont click that link its a virus
4 0
3 years ago
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