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Yuki888 [10]
3 years ago
13

(5x+42)+(8x-15) solve for X

Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer:

13x+27

Step-by-step explanation:

Remove the parentheses: (a) = a

=5x+42+8x-15

Group like terms:

=5x+8x+42-15

Add similar elements: 5x+8x=13x

=13x+42-15

Add and subtract the numbers: 42-15=27

=13x+27

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The answer is not infinity. 
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<span>assuming mass less cord and mass less, friction less pulley </span>
<span>the accelerations are equal </span>
<span>a=(T-m2*g)/m2 </span>

<span>m1*g-T=m1*(T-m2*g)/m2 </span>
<span>do some algebra </span>
<span>m1*g-T=m1*T/m2-m1*g </span>
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<span>2*m1*m2*g=T*(m2+m1) </span>
<span>2*m1*m2*g/(m2+m1)=T </span>
<span>now take the limit of T as m1->infinity </span>
<span>T=2*m2*g </span>

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5 0
3 years ago
JK has endpoints J(−5,4) and K(7,−10). Identify the coordinates of the midpoint of JK. Please help!!
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4 0
3 years ago
A survey was taken of twenty dentists about Sparkly toothpaste. Sixteen of the dentists recommended Sparkly toothpaste to their
Bas_tet [7]

Answer: There are 40 dentists who would recommended Sparkly toothpaste to their patients .

Step-by-step explanation:

Since we have given that

Out of 20 dentists, a survey was taken of about Sparkly toothpaste,

Number of dentists recommended Sparkly toothpaste to their patients = 16

Percentage of dentists who recommended Sparkly toothpaste to their patients be

\frac{16}{20}\times 100=80\%

Out of 30 dentists, a survey was taken of about Sparkly toothpaste,

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Similarly,

Percentage of dentists who recommended Sparkly toothpaste to their patients be

\frac{24}{30}\times 100=80\%

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As we have seen that there is always 80% of total number of dentists surveyed have recommended Sparkly toothpaste to their patients ,

so, According to this pattern , we get that

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5 0
3 years ago
Look at screenshot for more info
podryga [215]
C because I just did that
8 0
3 years ago
Which expression is equivalent to 19 - 27 a. 27 - 19 b. -19 + 27 c. 19 + -27 d. -19 + 27
Aliun [14]

Answer:

<h2>c. 19 + -27</h2>

Step-by-step explanation:

We know:

a - b = a + (-b)

a + b = b + a

19 - 27 = 19 + (-27) = (-27) + 19 = -27 + 19

7 0
4 years ago
Read 2 more answers
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