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BartSMP [9]
3 years ago
12

Amy has 20 quarters. Sodas cost $0.75. Write an expression for how many quarters Amy has left after buying d amount of sodas.

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
7 0
20-3d
tigjungfngvbjdenfg
ignore that^
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Neil started a stamp collection with 12 stamps. Every week , he adds 4 more stamps to the collection. Which function? F represen
svlad2 [7]

Answer:

s=4w+12

Step-by-step explanation:

Let

s -----> the number of stamps

w ----> the number of weeks

we know that

The linear equation that represent this situation is

s=4w+12 ----> equation of the line into slope intercept form

where

the slope m is equal to m=4\ stamps/week

the y-intercept b is equal to b=12\ stamps ---> (the initial value)

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1. T

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2 years ago
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Zepler [3.9K]

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2 years ago
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Yesterday it took 40 minutes to drive to school. Today is took 32 minutes to drive to
Leokris [45]

Answer:

20%

Step-by-step explanation:

To find the percent decrease, we do old number subtracted from the new numbers over old.

We do

40 - 32 = 8

Then we put the 8 over the old and get

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In percentage form it would be 20%

8 0
3 years ago
Find the value of b.
Nesterboy [21]

Answer: 230^{\circ

Step-by-step explanation:

For convenience, I labeled some points as shown in the attached picture.

Also, I assume \overline{AB} and \overline{BC} are tangents to the circle.

  1. \overline{BO} \cong \overline{BO} (reflexive property)
  2. \overline{AB} \cong \overline{BC} (tangents drawn from a common external point are congruent)
  3. \angle BAO \cong \angle BCO (right angles are congruent)

Therefore, we know \triangle ABO \cong \triangle CBO by HL.

Thus, by CPCTC,

\angle AOB \cong \angle BOC \implies m\angle BOC=65^{\circ}\\\\\implies m\angle AOC=130^{\circ}

This means the measure of minor arc AC is 130^{\circ}, and thus b=360^{\circ}-130^{\circ}=\boxed{230^{\circ}}

7 0
1 year ago
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