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3 years ago

7x - 11 = 5x + 25 what is the answer to this question

Mathematics

2 answers:

Nikolay [14]3 years ago

6 0

Answer: x=18

Step-by-step explanation: 7x−11=5x+25

Step 1: Subtract 5x from both sides.

7x−11−5x=5x+25−5x

2x−11=25

Step 2: Add 11 to both sides.

2x−11+11=25+11

2x=36

Step 3: Divide both sides by 2.

2x /2 = 36 /2

x=18

Answer:

x=18

KatRina [158]3 years ago

5 0

Answer:

12x+14

Step-by-step explanation:

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3 years ago

He variable y is directly proportional to the variable x . If y = 10 when x = 6, what is the value of y when x = 15?

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3 years ago

Read 2 more answers

In ΔCDE, \overline{CE}

abruzzese [7]

Answer:

$m\angle CDE=14^o$

Step-by-step explanation:

we know that

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

see the attached figure to better understand the problem

∠DEF=∠ECD+∠CDE

substitute the given values

$(4x+5)^o=(x+9)^o+(x+8)^o$

solve for x

Combine like terms

$(4x+5)^o=(2x+17)^o$

Group terms

$4x-2x=17-5$

$2x=12$

$x=6$

Find the measure of angle CDE

$m\angle CDE=(x+8)^o$

substitute the value of x

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8 0

3 years ago

You are the administrator of an annual essay contest scholarship fund. This year a $90,000 college scholarship is being divided

Vinil7 [7]

Answer:

Runner-up: $15,000

Winner: $75,000

Step-by-step explanation:

Let's create an equation for this problem.

Let x=the amount the runner-up receives

Let 5x=the amount the winner receives

Then,

x+5x=90,000

6x=90,000

x=15,000

5x=75,000

3 0

3 years ago