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Setler79 [48]
4 years ago
7

1/5 (x − 15)=7 help solving it

Mathematics
2 answers:
tamaranim1 [39]4 years ago
8 0

Answer:

<h3>                x = 50</h3>

Step-by-step explanation:

1/5 (x − 15) = 7

     ×5            ×5

 x - 15 = 35

  +15       +15

  x = 50

natali 33 [55]4 years ago
6 0

Answer: 50

Step-by-step explanation:

1. Because 1/5 is <em>outside</em> of the parentheses, multiply everything <em>inside</em><em> </em>the parentheses by 1/5. You should have 1/5x-3=7.

2. To get the variable and nonvariable in different sides, add 3 to both sides. You should have 1/5x=10

3. Divide both sides of the equation by 1/5 to isolate the variable. X is 50.

To double check, just input 50 where the x was and solve 1/5(50-15). You'll get 7

I hope this helped you:)

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Construct an interval estimate for the given parameter using the given sample statistic and margin of error. For μ1-μ2, using x¯
maks197457 [2]

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Lower limit

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Upper limit

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where x1 - x2 = 8 and margin of error = 8

For lower limit,

= 8 - 8 = 0

For upper limit

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Hence CI = (0, 8)

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3 years ago
Write -33/12 as a mixed number in reduced form. -2 -1 -2 -2
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3 years ago
Choose which line represents the line of the best fit
erastova [34]

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Step-by-step explanation:

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7 0
4 years ago
Read 2 more answers
The equation "c/5 + $1.00 = $9.00 can be used to find the total cost (including the delivery charge per person) for flowers purc
worty [1.4K]
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3 years ago
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For ALL of these....use these formulas...

Finding Markup%

Markup=Selling Price-Cost

Markup%= \frac{Markup}{Cost}*100

1.) Recliner Chair.   Cost=$61  Sell Price=$75.99

Markup= $75.99-$61
M=$14.99

Markup%= \frac{14.99}{61} *100

Markup%=24.5%  (Markup less than 25%)

2.) Basket Ball.    Cost=$23.75  Selling Price=$29.95

Markup= $29.95-$23.75
M=$6.20

Markup%=\frac{6.20}{23.75} *100

Markup%=26.1 (Markup greater than 25%)

3.) Necklace.  Cost=$15  Selling Price=$19.25

Markup= $19.25-$15
M=$4.25

Markup%=\frac{4.25}{15}*100

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4.)Notepad.  Cost=$1.19  Selling Price=$1.50 

Markup=$1.50-$1.19
M=$0.31

Markup%=\frac{0.31}{1.19}*100

Markup%=26.1 (Markup greater than 25%)

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Markup=$54.99-$44.55
M=$10.44

Markup%=\frac{10.44}{44.55} *100

Markup%=23.4 (Markup less than 25%)

6.) DVD.  Cost=$10.80  Selling Price=$12.95

Markup=$12.95-$10.80
M=$2.15

Markup%=\frac{2.15}{10.80}*100

Markup%=19.9 (Markup less than 25%)

I hope this benefits other people in the future. :D
5 0
3 years ago
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