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salantis [7]
3 years ago
14

2x+5 = 11 What is x in this equation

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
8 0

Answer:

x=3

Step-by-step explanation:

Subtract 5 from both sides:

2x=6

Divide both sides by 2:

x=3

adoni [48]3 years ago
3 0

Answer:

3

Step-by-step explanation:

2x+5=11

subtract 5 from both sides of the equation

  • 2x=6

Then divide by two to both sides of the equation

  • x=3
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A math test is worth 100 points and has 38 problems. Each problem is worth either 5 points or 2 points. How many problems of eac
Nat2105 [25]

Answer:

<em><u>5</u></em><em><u> </u></em><em><u>points</u></em><em><u> </u></em><em><u>question</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>8</u></em>

<em><u>and</u></em><em><u> </u></em><em><u>2</u></em><em><u> </u></em><em><u>po</u></em><em><u>ints</u></em><em><u> questions</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>3</u></em><em><u>0</u></em><em><u> </u></em><em><u>!</u></em><em><u>!</u></em>

Step-by-step explanation:

Let the number of 5 points questions be x and number of the 2 points questions be y !!

Given :- The paper has 38 problems

i.e,

number of 5 points Q + number of 2point Q = 38

=> x + y = 38

=> x = 38 - y .... ( i )

And , The test worth 100 pts :-

There must be x number of Questions which carry 5 points and there must y number of questions which carries 2 points ( as assume above )

so, 5x + 2y = 100 .... ( ii )

Putting value of the x in ( ii )

5 ( 38 - y ) + 2y = 100

190 - 5y + 2y = 100

- 3y = - 90

y = 30

Putting value of y in ( i )

x = 38 - y

x = 38 - 30

x = 8

So, the Number of 5points Question is

x = 8

and , the number of 2 points questions is y = 30 !!

4 0
3 years ago
Scott has eight CDs, and he picks two to take to work each day. How many different ways can Scott choose two CDs?
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Answer:

The total number of ways to select 2 CDs from 8 CDs is 28.

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Answer:

The records cost $5 and the tapes cost $7

 Step-by-step explanation:


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3 years ago
How many terms does the expanded form of (2x + 5)<br> have?
svetoff [14.1K]

Answer:

2

Step-by-step explanation:

2x and 5 = 2 terms

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Determine the equation of the line, in point-slope form, that will get your spacecraft from Point A (0,3) to Point B (-3,0)
jeka94
m= \frac{y2-y1}{x2-x1}

m= \frac{0-3}{-3-0}

m= \frac{-3}{-3}

m=1

Point Slope Form:  (y-y1)=m(x-x1)

(y-3)=1(x-0)

(y-3)=(x-0)

(y-3)=(x)
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4 years ago
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