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nalin [4]
3 years ago
10

9= 2/3 (x+12) plz help

Mathematics
1 answer:
avanturin [10]3 years ago
5 0

Answer:  x=3/2  

Step-by-step explanation:

Multiply the parentheses by 2/3.  9=2/3x+8.

Multiply  both sides by 3 .  27=2x+24

Move the term. When moved to the left side it changes from positive to a negative.  -2x=24-27.

-2x=-3

Divide both sides by -2

x=3/2   (x=1 1/2, x=1.5)

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Elena drops her pencil in her cup and notices that it just fits diagonally. the pencil is 17cm long and the cup is 15cm tall. wh
Vadim26 [7]

Hence the answer is 480ml

Step-by-step explanation:

Given Elena wonders how much water it will take to fill her cup. She drops her pencil in the cup and notice it just fit diagonally. The pencil is 17cm long (hypotenes) and the cup is 15cm tall.

To find how much water it can hold

SOLUTION

s

\sqrt{x {} ^{ 2}  + x {}^{2}  + 15 {}^{2}  = 17 }

2x {}^{2}  = 64

x {}^{2}  = 32

x = 5.66

therefore volume of the cup

5.66 \times 5.66 \times 15cm|

480cm³= 480ml

4 0
2 years ago
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siniylev [52]
In Geometry.... the following defined terms are: line, point, and plane.
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3 years ago
there are 750 students in class 7 and 625 students in class 8 what percent is class 7 of the class 8?
Leno4ka [110]
750 is ?% of 625

<em>Y = ?% * X</em>

Solving our equation for ?
?% = Y/X
?% = 750/625
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Convert decimal to percent:
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Class 8 is 120% of Class 7.

If you want the percent of Class 8 to Class 7, it is:
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<em> = ?% * X</em>

Solving the equation for ?
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?% = 625/750
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Convert decimal to percent:
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A pump moves 70 gallons of water
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3 years ago
Solve 15x squared + 40x
rewona [7]

Answer:

265x

Step-by-step explanation:

Squared mean to multiply the number times itself. So 15x times 15x.

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Then we add 40x

225x + 40x = 265x

3 0
3 years ago
Read 2 more answers
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