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2 years ago

Solve the equation for x

Mathematics

2 answers:

tangare [24]2 years ago

8 0

Draw a line
box the variable
add opposite to both sides
solve for the variable

Studentka2010 [4]2 years ago

3 0

-8x+8=x-34
-9x=-42
x=42/9
42/9 = 14/3

x=14/3 or 4.6...

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One angle of a triangle measures 136º. The other two angles are congruent.

WINSTONCH [101]

Answer:

22°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , then

x + x + 136° = 180°

2x + 136° = 180° ( subtract 136° from both sides )

2x = 44° ( divide both sides by 2 )

x = 22°

3 0

2 years ago

X + 6 >10 or 3x + 11 ≤ −7

hjlf

Answer:

x>4 or x≤-6

Step-by-step explanation:

x+6>10 or 3x+11≤-7

x>4 or 3x≤-18

x>4 or x≤-6

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2 years ago

Bob bought the 24 fish for $51.36. How much did each fish cost him? Show your calculation.

o-na [289]

Answer:

2.14

Step-by-step explanation:

2.14x24=51.36

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2 years ago

Which equation(s) have x = –3 as the solution? log3(2x + 15) = 2 log5(8x + 9) = 2 log4(–20x + 4) = 3 logx81 = 4

baherus [9]

Answer:

log_3(2x+15)=2 and log_4(-20x+4)=3

Step-by-step explanation:

Plug it in and see!

$log_3(2x+15)=2\\log_3(2(-3)+15)=2\\log_3(-6+15)=2\\log_3(9)=2\\\text{ This is a true equation because } 3^2=9\\\\\\log_5(8(-3)+9)=2\\log_5(-24+9)=2\\log_5(-15)=2\\\\\text{ Not true because you cannot do log of a negative number }\\\\log_4(-20(-3)+4)=3\\log_4(64)=3\\\text{ this is true because } 4^3=64\\\\\\log_x (81)=4\\log_{-3}(81)=4\\\text{ the base cannot be negative }\\\\\\\\\text{ There is only two options here} \\\\log_3(2x+15)=2 \text{ and } log_4(-20x+4)=3$

6 0

3 years ago

Read 2 more answers

I don't understand pls help

MrMuchimi

Twilight was liked by half the class because if you add up the number of students you get 24 and half of 24 is 12
(Hope this helped)

3 0

3 years ago