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3 years ago

C = 1 /2Rt solve for R

Mathematics

1 answer:

Vladimir [108]3 years ago

7 0

C = 1/2 RT

1. C/2 = RT

2. C/2 * 1 / T = R

R = C / 2 * 1 / T

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2. The number of nickels that Christine has is

aev [14]

Answer:

The number of nickels is 15

The number of Dimes is 3

Step-by-step explanation:

Let the number of dimes Christine has be d

The number of nickels with christine be n

Then the number of Nickels Christine has will be

n = 5d ----------------------------------(1)

Now The total value of both dimes and nickels is = $1.05

This can be represented as

5n +10d = 105 (in cents)

From eq(1)

5(5d) + 10d = 105

25d+10d = 105

35d = 105

$d = \frac{105}{35}$

d = 3----------------------------------(2)

Substituting (2) in (1), we get

n = 5(3)

n = 15

7 0

3 years ago

If a rectangle has a width of 36 square units, is it inversely proportional to its width?

ANTONII [103]

Answer:

tegf ehetrh

Step-by-step explanation:

rwh rt hre r

5 0

3 years ago

A survey of favorite movie types found that 36% of people polled preferred comedies instead of action movies. if

Wittaler [7]

Answer:

Step-by-step explanation:

The answer is greater than 450 because the percentage is less than 100%

36% = 36/100 = 0.36

450/0.36 = 1250

how many people were surveyed?:

1250

7 0

2 years ago

Tanya is training a turtle for a race. For every 1/2 of an hour that the turtle is crawling, he can travel 3/20 of a mile. At wh

vazorg [7]

Answer:

$\frac{6}{20} \ mile\ per\ hour$

Step-by-step explanation:

Given:

For every 1/2 of an hour that the turtle is crawling, he can travel 3/20 of a mile

Question asked:

At what unit rate is the turtle crawling?

Solution:

As here<u> time taken is given</u> and the <u>distance traveled is also given </u>and hence we will apply speed and distance formula to find rate of crawling of turtle.

Time taken by turtle = $\frac{1}{2} \ hour$

Distance which can be traveled by turtle = $\frac{3}{20} \ miles$

$Speed =\frac{Distance}{Time}$

$=\frac{3}{20} \div\frac{1}{2} \\\\ =\frac{3}{20} \times\frac{2}{1} \\ \\ =\frac{6}{20}$

Therefore, the rate at which the turtle is crawling is $\frac{6}{20} \ mile\ per\ hour$

4 0

3 years ago

A backpack costs $18 and has a 7 percent tax. How much will Sheila have to pay for the backpack after tax?

Dmitry_Shevchenko [17]

Answer:

19.26

Step-by-step explanation:

7% of 18 is 1.26

1.26+18=19.26

4 0

3 years ago