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Pachacha [2.7K]
3 years ago
5

2x+9=25 need reason for its statement

Mathematics
1 answer:
wel3 years ago
4 0
Look at 2%2Ax%2B9=highlight_red%28+25+%29.
Moved these terms to the left highlight_green%28+-25+%29
It becomes 2%2Ax%2B9-highlight_green%28+25+%29=0.
Look at 2%2Ax%2Bhighlight_red%28+9+%29-highlight_red%28+25+%29=0.
Added fractions or integers together
It becomes 2%2Ax%2Bhighlight_green%28+-16+%29=0.
Look at 2%2Ax%2Bhighlight_red%28+-16+%29=0.
Removed extra sign in front of -16
It becomes 2%2Ax-highlight_green%28+16+%29=0.
Look at highlight_red%28+2%2Ax-16+%29=0.
Solved linear equation highlight_red%28+2%2Ax-16=0+%29 equivalent to 2*x-16 =0
It becomes highlight_green%28+0+%29=0.
Result: 0=0
This is an equation! Solutions: x=8.
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Find x. A. 11√6/2 B. 22 C. 33 D. 11√3/2
Phoenix [80]

Answer:

B

Step-by-step explanation:

using the tangent ratio on the triangle on the right and the exact value

tan60° = \sqrt{3} , then letting the altitude be h

tan60° = \frac{opposite}{adjacent} = \frac{11\sqrt{6} }{h}  = \sqrt{3} ( multiply both sides by h )

11\sqrt{6} = h × \sqrt{3} ( divide both sides by \sqrt{3} )

11\sqrt{2} = h

using the sine ratio in the triangle on the left and the exact value

sin45° = \frac{\sqrt{2} }{2} , then

sin45° = \frac{opposite}{hypotenuse} = \frac{h}{x} = \frac{11\sqrt{2} }{x} = \frac{\sqrt{2} }{2} ( cross- multiply )

\sqrt{2} × x = 22\sqrt{2} ( divide both sides by \sqrt{2} )

x = 22

6 0
1 year ago
An online store sells specialty bags. They charge $8 for shipping and $21 per bag ordered.
stellarik [79]

Answer:

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Step-by-step explanation:

8 0
2 years ago
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Juliette [100K]

Answer: 5

Step-by-step explanation:

6 0
2 years ago
Jim read 24 pages in 40 minutes on Tuesday and 18 pages in 24 minutes on Wednesday. Are the ratios of pages read to minutes on T
IRISSAK [1]

Answer: Not proportional


Step-by-step explanation:

Ratio of pages read by Jim on Tuesday to minutes =\frac{24}{40}=\frac{3}{5}=3:5

Ratio of pages read by Jim on Wednesday to minutes =\frac{18}{24}=\frac{3}{4}=3:4

But \frac{3}{5}\neq \frac{3}{4}

Therefore, the ratios of pages read to minutes on Tuesday and Wednesday are not proportional.


8 0
3 years ago
Read 2 more answers
Read the questions and choose the best answer.
Arte-miy333 [17]
Where’s the questions ?
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2 years ago
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