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wlad13 [49]
2 years ago
15

If Carrie is 55% of the way achieving her goal and she has already run 11 miles, how many miles is she trying to run by the end

of the week
Mathematics
1 answer:
OlgaM077 [116]2 years ago
3 0

Answer:

If 11 = 55%

Then 20= 100%

Step-by-step explanation:

1%=0,2

100%= 0,2×100

100%=20

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David's Parents have a sandwich shop. They sell sandwiches for $5 each and
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A salesman sells between 15 and 25 cars per month. What is the best estimate of the number of cars he will sell in a year? Show
Zigmanuir [339]

Answer:

240 cars

Step-by-step explanation:

The salesman sells 15 to 25 cars per month. Average number of cars sold per month would be = (15+25)/2 = 20 cars per month

one year has 12 months

Number of cars sold in an year = monthly rate x no. of months

                                                    = 20 x 12

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3 years ago
Divisibility test for 10
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4 0
2 years ago
Read 2 more answers
PQ and QR are two sides of a regular 12-sided polygon. PR is the diagonal of the polygon.
skelet666 [1.2K]

The size of angle PRQ is 15°

Step-by-step explanation:

In any regular polygon of n-sided

  • All sides are equal in length
  • All angles are equal in measure
  • The measure of each interior angle is \frac{(n-2)*180}{n}
  • The measure of each exterior angle is \frac{360}{n}
  • The sum of the measures of the interior and exterior angle at the same vertex is 180°

∵ PQ and QR are two sides of a regular 12-sided polygon

∴ PQ = QR

∵ PR is a diagonal

∴ ∠PQR is an interior angle of the polygon

- By using the rule of the interior angle above

∵ n = 12

∴ m∠PQR = \frac{(12-2)*180}{12}

∴ m∠PQR = 150°

In Δ PQR

∵ PQ = QR ⇒ sides in a regular polygon

- Δ PQR is an isosceles Δ

∴ m∠PRQ = m∠RPQ ⇒ base angles of an isosceles Δ

The sum of the measures of the interior angles of a triangle is 180°

∵ m∠PQR + m∠PRQ + m∠RPQ = 180°

∴ 150 + m∠PRQ + m∠RPQ = 180°

- Subtract 150 from both sides

∴ m∠PRQ + m∠RPQ = 30

∵ m∠PRQ = m∠RPQ

- Divide their sum by 2 to find the measure of each one

∴ m∠PRQ = m∠RPQ = 30 ÷ 2 = 15°

∴ m∠PRQ = 15°

The size of angle PRQ is 15°

Learn more:

You can learn more about the triangles in brainly.com/question/3945600

#LearnwithBrainly

4 0
3 years ago
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