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3 years ago

This is actually serious :/ I need help I can't solve this...

Mathematics

1 answer:

Marysya12 [62]3 years ago

6 0

Answer:

If it cost Hudson $28.20 to send 188 text messages, it would cost $9.45 to send 65 text messages. So the answer would be $9.45.

Step-by-step explanation:

Let me explain why. The answer is 9.45 because, 28.20 divided by 188 is 0.15. Then, if you multiply 0.15 by 63 you get 9.45.
28.20/188=.15

.15x63=9.45
So yeah, that's why if it cost Hudson $28.20 for 188 messages, it would be $9.45 to send 65 messages. So again, the answer is 9.45. I hope this was helpful and makes you understand it more now. :D

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3 years ago

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Answer:

(27,2) and (243,18)

(63,9) and (84,12)

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Step-by-step explanation:

Formula for slope of a line is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

a) (15,30) and (20,40).

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Similarly find the slope of other lines.

b) (12,32) and (18,48).

$m_b=\dfrac{48-32}{18-12}=\dfrac{16}{6}=2.67$

c) (27,12) and (72,32).

$m_c=\dfrac{32-12}{72-27}=\dfrac{20}{45}=0.44$

d) (45,15) and (60,20).

$m_d=\dfrac{20-15}{60-45}=\dfrac{5}{15}=0.33$

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$m_e=\dfrac{18-2}{243-27}=\dfrac{16}{216}=0.074$

f) (18,63) and (24,84).

$m_f=\dfrac{84-63}{24-18}=\dfrac{21}{6}=3.5$

g) (63,9) and (84,12).

$m_g=\dfrac{12-9}{84-63}=\dfrac{3}{21}=0.143$

After arranging the slopes in increasing order, we get

$m_e$

So, required arrangement of ordered pairs is

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(45,15) and (60,20)

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(15,30) and (20,40)

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