3 years ago

Find y when x = 15 if y = 6 when x = 30

Mathematics

1 answer:

Ivahew [28]3 years ago

6 0

Y is 12 you just multiply by 2 since 15 was multiplied by 2 as well

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Charlotte drives 64 mph for the first 3 hours of her trip and 92 mph for last 4 hours.

german

Answer:

80 mph

Step-by-step explanation:

$\boxed{\sf Distance=Speed \times Time}$

<u>First leg of trip</u>

Speed = 64 mph
Time = 3 hours

$\implies \sf Distance =64\times 3 = 192\:miles$

<u>Second leg of trip</u>

Speed = 92 mph
Time = 4 hours

$\implies \sf Distance=92 \times 4 = 368\:miles$

$\boxed{\sf Speed=\dfrac{Distance}{Time}}$

To find the average speed:

$\begin{aligned}\implies \sf Average\:speed & = \sf \dfrac{Total\:distance}{Total\:time}\\\\ & = \sf \dfrac{192+368}{3+4}\\\\& = \sf \dfrac{560}{7}\\\\ & = \sf 80\:mph\end{aligned}$

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2 years ago

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Last year, 50 students attended the winter carnival. This year, 60 students attended the carnival. Which statement below correct

SVETLANKA909090 [29]

Answer: 20% increase

Step-by-step explanation:

change/ original number

(60 - 50 / 50) x 100 = 20

20%

5 0

3 years ago

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Find the first, fourth, and eighth terms of the sequence. a(n)=-2 x 2^n-1

leonid [27]

Answer:

2, 16 and 256.

Step-by-step explanation:

Just substitute for n:-

first term ( when n = 1) = 2 * 2^(1-1)

= 2 * 1 = 2

4th term = 2 * 2^(4-1) = 16

8th term = 2* 2^(8-1) = 256

8 0

3 years ago

What number round to 200.000 when rounded to the nearest hundred thousand? Choose all that apply

Anuta_ua [19.1K]

Answer:

Is there multiple choice to this question?

anyway the answer maybe is: 0

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3 years ago

Please help me solve this problem

Diano4ka-milaya [45]

Answer:

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Step-by-step explanation:

48 inches is equivalent to 2 feet

so basically 10 x 2 gets you 20 feet

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3 years ago