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3 years ago

What is measure WR and RT

Mathematics

1 answer:

iren [92.7K]3 years ago

8 0

$\frac{2x + 6}{x + 6} = \frac{10}{8} = \frac{5}{4} \\ 8x + 24 = 5x + 30 \\ 3x = 6 > > > x = 2$

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The sum of one fifth of a number and three is equal to half of the number. What is the number?

Veseljchak [2.6K]

see picture for steps

x= 10

7 0

3 years ago

How much chromium-51 will be left after 7 months?

Makovka662 [10]

Answer:

It seems there's more information in you question that you haven't posted.

7 months = 7 * (365/12) = 213 days

The half-life of chromium 51 is 27.7 days.

After 7 months, chromium 51 will have undergone 7.69 half-lives.

To solve for the ending amount we'll use the formula:

Ending Amount = Beginning Amount / 2^n where 'n' = # of half-lives

We'll say the beginning amount =1

Ending Amount = 1 / 2^7.69

Ending Amount = 0.0048426082

Basicaly if you started with 1 gram of chromium 51, after 7 months you would have 0.0048426082 grams.

Source: https://www.1728.org/halflife.htm

Step-by-step explanation:

6 0

2 years ago

I need help :) ( 12 points)

Agata [3.3K]

Answer:

Step-by-step explanation:

The graph starts at 15, so that's the y intercept and the Gallons of gasoline is going down so the slope is negative

3 0

3 years ago

Which pipe configuration can deliver more water to

Stels [109]

Answer: One 8-cm pipe (Its is greater than the total area of of two 4-cm pipes)

Step-by-step explanation:

The area of a circle can be calculate with this formula:

$A=\pi r^2$

Where "r" is the radius of the circle.

We need to calculate the area of 8-cm pipe. In this case:

$r=8cm$

Then, substituting the radius into the formula, we get:

$A=\pi (8cm)^2\\\\A=201.06cm^2$

Now we must calculate the area of the two 4-cm pipes.

Since they are two pipes, the formula is:

$A=2\pi r^2$

In this case:

$r=4cm$

Then, substituting into the formula, we get:

$A=2\pi (4cm)^2\\\\A=100.53cm^2$

Therefore, since the area of one 8-cm pipe is greater than the total area of of two 4-cm pipes, we conclude that the pipe configuration that can deliver more water to residents is:

One 8-cm pipe

4 0

3 years ago

The product of 8/15 6/5 and 1/3 is?

Leno4ka [110]

Its 16/75 if its one of ur options hope it helps

3 0

3 years ago

Read 2 more answers