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3 years ago

What is the radius of a circle with a circumference of 8 ft to the nearest hundredth

Mathematics

1 answer:

agasfer [191]3 years ago

7 0

Answer:

1.27

Step-by-step explanation:

$r=\frac{C}{2\pi }$

$\frac{8}{2\pi }$

= $1.27$

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300 milliliters are equivalent to how many liters?

White raven [17]

Thanks for using brainly!B. 0.3 would be the answer.

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3 years ago

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If I place $2,000 in my retirement account at the beginning of each year for 10 years. The account will earn 5 percent interest

Norma-Jean [14]

Answer:

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Step-by-step explanation:

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2 years ago

The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day 333 people enter the park, the

liberstina [14]

Answer:

188 children and 145 adults were admitted in the park.

Step-by-step explanation:

Given:

The admission fee at an amusement park is $1.50 for children and $4 for adults.

Total $862 collected on a certain day when 333 people enter the park.

Now, to find the children and adults admitted in the park.

Let the number of children admitted be $x.$

And the the number of adults admitted be $y.$

So, the total people enter the park:

$x+y=333\\\\x=333-y\ \ \ ...(1)$

Thus, the total amount collected of the admission fee:

$1.50(x)+4(y)=862\\\\$

Substituting the value of $x$ from equation (1):

$1.50(333-y)+4(y)=862\\\\499.50-1.50y+4y=862\\\\499.50+2.50y=862\\\\Subtracting\ both\ sides\ by\ 499.50\ we\ get:\\\\2.50y=362.50\\\\Dividing\ both\ sides\ by\ 2.50\ we\ get:\\\\y=145.$

Thus, the number of adults = 145.

Now, to get the number of children by substituting the value of $y$ in equation (1) we get:

$x=333-y\\\\x=333-145\\\\x=188.$

Hence, the number of children = 188.

Therefore, 188 children and 145 adults were admitted in the park.

4 0

3 years ago

An automatics air freshener releases droplets into the air to improve the smell of a living room. At 30 minutes, the canister ha

Dovator [93]

Answer:

The equation is;

y = -1/4x + 607.5

Step-by-step explanation:

Let us have the number of drops as y axis while the number of minutes is x axis

The points to use are;

(30,600) and (130,575)

The slope can be calculated using;

m = (y2-y1)/(x2-x1)

= (575-600)/(130-30) = -25/100 = -1/4

So the equation as we model using the normal equation of a straight line (y = mx + c, m is slope and c is the intercept)

y = -1/4x + c

To get c, we simply substitute one point

Let us use (30,600)

We have

600 = -1/4(30) + c

600 + 7.5 = c

c = 607.5

So the equation is ;

y = -1/4x + 607.5

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3 years ago

Estimate. then ,divide using the standard algorithm and check 45.15/21

insens350 [35]

I estimated to 45 then divided 21 and got about 2.1

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3 years ago