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Sidana [21]
3 years ago
9

Iris made bracelets with string and beads. She used x centimeters of string to make 7 bracelets. She used 17.8 centimeters of st

ring for each bracelet. How much string did she use in all? Write an equation and use it to solve this problem.
Mathematics
1 answer:
iren [92.7K]3 years ago
3 0

Answer:

124.6 centimeters

Step-by-step explanation:

7(17.8) = x

Simplify:

x = 124.6

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Find the slope of the line graphed below.
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Write $\frac{99}{100}\cdot(0.\overline{4})$ as a fully simplified fraction.
Oksi-84 [34.3K]

Answer:

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Explanation:

The expression that must be rewritten as a fully simplified fraction is:

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You must, first, convert     0.\overline{4}    as a fraction.

The line over the decimal 4 means that the digit 4 repeats indefinetly.

To find the fraction that represents this number you follow this procedure:

F=0.\overline 4\\ \\ 10F=4.\overline 4\\ \\ 10F-F=4\\ \\ 9F=4\\ \\ F=4/9

Now, you can mutiply both fractions:

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6 0
3 years ago
A teacher has a box of pens and pencils. There are 8 more pencils than pens. After the students take 1 pen and 5 pencils from th
crimeas [40]
Let no. of pens be x.

Pens : x
Pencils: x+8

Total: 2x+8

Student takes 1 pen and 5 pencils.

Remainder: 2x+8 - 5 -1 = 2x+2
2x+2 = 26
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x+ 8 = 20 (original no of pencils)

There are 12 pens at first and 20 pencils.
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5 0
3 years ago
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Very confusing i know
777dan777 [17]

Answer:

  • (x + 10)² + (y + 4)² = 232

Step-by-step explanation:

<h3>Given </h3>
  • Center = (-10, -4)
  • Point on circle = (4, 2)
<h3>To find </h3>
  • The equation of circle
<h3>Solution</h3>

<u>Remember the standard equation of circle:</u>

  • (x - h)² + (y - k)² = r², where (h, k) is the center and r is radius

<u>We have</u>

  • h = -10, k = -4

Use distance formula (Pythagorean theorem) to work out the length of the radius. We know that radius is the distance from the center to any point on the circle.

<u>Here we are finding the distance between points (-10, -4) and (4, 2)</u>

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<u>So the equation is:</u>

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3 years ago
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