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Scilla [17]
3 years ago
13

Richard went to the store to buy some pencils and 2 packs of paper. Perry who went with Richard to the store, spent $30 on a mag

azine and some candy bars. If the magazine cost $6 and each candy bar cost $3, then how many candy bars did Perry buy?
Mathematics
2 answers:
diamong [38]3 years ago
8 0

Answer:

8

Step-by-step explanation:

$30 - $6 for the magazine = $24 ÷ $3 for one candy bar = 8 candy bars

EleoNora [17]3 years ago
8 0

Answer:

8 candy bars

Step-by-step explanation:

6 + 3x = 30

3x = 24

x = 8

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Step-by-step explanation:

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7 0
3 years ago
Find the center and radius of this circle.<br> x2 + y2 − 40x − 24y + 15 = 0
Julli [10]

ANSWER

Center: (20,12)

Radius:23

EXPLANATION

The given circle has equation:

{x}^{2}  +  {y}^{2}  - 40x - 24y + 15 = 0

We complete the square as follows:

{x}^{2}  - 40x +  {y}^{2}  - 24y =  - 15

{x}^{2}  - 40x +   {( - 20)}^{2} +  {y}^{2}  - 24y +  {( - 12)}^{2}  =  - 15+   {( - 20)}^{2}+  {( - 12)}^{2}

{(x - 20)}^{2} +  {(y - 12)}^{2}  =  - 15+   400+  144

{(x - 20)}^{2} +  {(y - 12)}^{2}  = 529

{(x - 20)}^{2} +  {(y - 12)}^{2}  =  {23}^{2}

Comparing this equation to:

{(x - h)}^{2} +  {(y - k)}^{2}  =  {r}^{2}

We have

(h,k)=(20,12)

representing the center and

r = 23

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5 0
3 years ago
is it possible to have a right triangle in which the sine of one of the angles is equal to the cosine of one of the angles? why?
stira [4]

Answer:

Yes , it is possible (see the explanation)

Step-by-step explanation:

we know that

In a right triangle, we have two complementary angles (their sum equal to 90 degrees)

so

If two angles are complementary, the cofunction identities state that the sine of one equals the cosine of the other and vice versa

<em>Example</em>

Suppose we have the right triangle ABC

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A and B are complementary angles

A+B=90°

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sin(A)=cos(B)

sin(B)=cos(A)

8 0
4 years ago
Jordan is using a six-sided number cube to predict whether people shopping in the mall arrive by car or by bus. Based on data ga
Vlad [161]

Answer:

ФHello Wonderful PersonФ

Your αnswer should βe:

β. As Jordan conducts more trials, the percent of people predicted to take the bus will approach 33%.

Step-by-step explanation:

<h2>First answer!</h2>

Please mark brainliest!

Have a nice day!

7 0
3 years ago
Read 2 more answers
1/4 + 4 (1/2 - 3/4)the to the second power
Alborosie

Answer:

2/4

Step-by-step explanation:

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=>1/4 + 1/4

=>2/4

3 0
4 years ago
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