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max2010maxim [7]
3 years ago
5

20. Find the value of the variable y in the equation –5.7 + y = 8.2. A. –2.5 B. 2.5 C. –13.9 D. 13.9

Mathematics
1 answer:
Elena L [17]3 years ago
8 0

-5.7+y=8.2\qquad\text{add 5.7 to both sides}\\\\\boxed{y=13.9}\to\boxed{D.}

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The glee club could have 6 members so the 48 classical CDs would be divided into 8 and the 42 show tunes could be divided into 7
4 0
3 years ago
Expand the following:<br> a) x(x + 2)<br> b) x(2x - 5)<br> c) 2x(3x + 4)<br> d) 6x(x - 2)
TEA [102]

Answer:

<h2>a. \:  {x}^{2}  + 2</h2>

<h2> </h2><h2>b. \: 2 {x}^{2}  - 5x</h2><h2> </h2><h2>c. \: 6 {x}^{2}  + 8x</h2><h3> </h3><h3>d. \: 6 {x}^{2}  - 12x</h3>

solution,

a. \: x(x + 2) \\  \:  \:  = x \times x + 2 \times x \\  \:  \:  =  {x}^{2}  + 2x

b . \: x(2x - 5) \\  \:  = x \times 2x - x \times 5 \\  \:  \:  = 2 {x}^{2}  - 5x

c. \: 2x(3x + 4) \\  \:  = 2x \times 3x + 2x \times 4 \\  \:  \:  = 6 {x}^{2}  + 8x

d. \: 6x(x - 2) \\  \:  \:  = 6x \times x  - 6x \times 2 \\  \:  \:  = 6 {x}^{2}  - 12x

<h2> </h2><h2 />

Hope this helps...

Good luck on your assignment..

4 0
3 years ago
You're an aeronautical engineering student, and you have been awarded a "Co-op" job at NASA in your junior year of your 4-year p
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Answer:

$85,000

Step-by-step explanation:

8 0
3 years ago
Svp aidez moi )
34kurt

Answer:

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Step-by-step explanation:

X= années qui doivent passer

3(12+X ) = 42 +X

36+ 3X = 42 +X

2X = 6

X = 3

La fille   15 ans

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3 0
3 years ago
Renna pushed the button for the elevator to go up, but it would not move. The weight limit for the elevator is 450 kilograms, bu
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Hope this helped!
8 0
3 years ago
Read 2 more answers
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