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Mashutka [201]
2 years ago
11

add at the park there's a pool shaped like a circle with a diameter 22 yards. A ring shaped path goes around the pool. it's widt

h is 5 yards.
Mathematics
2 answers:
kotegsom [21]2 years ago
7 0

Answer:

424 yards²

Step-by-step explanation:

Diameter 22, radius 11

Outer circle: radius = 11+5 = 16

Area of the path:

Pi× (16²-11²)

= 135pi yards²

Or, 424 yards² (3 sf)

neonofarm [45]2 years ago
3 0

Answer:

135pi

Step-by-step explanation:

(I'm guessing you want to know the ring's area)

Diameter = 22 yards, meaning Radius = 11 yards

(11+5)^{2}\pi = 256pi = Outer Ring + Pool

(11)^{2}\pi = 121pi = Pool

Outer Ring = 256pi - 121pi = 135pi

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one pound of grapes costs $1.55. which equation correctly shows a pair of equivalent ratios that can be used to find the cost of
Marat540 [252]

startfraction 1.55 over 1 endfraction is x = 1.55

<h3>What is ratio?</h3>

A ratio in mathematics shows how many times one number is included in another. For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six (that is, 8:6, which is identical to the ratio 4:3). (i.e., 8:6, which is identical to 4:3). The ratio of oranges to the overall amount of fruit is 8:14, while the ratio of lemons to oranges is 6:8 (or 3:4). (or 4:7). (or 4:7). A ratio can have any number of values, such as counts of people or things or measures of length, weight, time, etc. In most cases, both numbers must be positive.

EXPLANATION:

Sadly, we are unable to view the list of equations from which you can choose. But if we assume that x Equals the cost of 3.5 kg of grapes, we can construct the following equation

1/1.55 = 3.5/x

x = 1.55

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3 0
1 year ago
To create an entry​ code, you must first choose 2 letters and​ then, 3 ​single-digit numbers. How many different entry codes can
RideAnS [48]

multiply everything together

 there are 26 letters and 10 digits

so 26 x 26 x 10 x 10 x 10 = 676,000 combinations

8 0
3 years ago
To maintain essential electricity, a gasoline generator at a Puerto Rico hospital uses 3 gallons of gasoline per hour. a) How ma
stira [4]

The mass of the CO2 produced IS 630 Kg

<h3>What is gasoline?</h3>

Gasoline is a kind of fuel that is composed mostly of isooctane. In most engines, gasoline is widely used hence the demand for the product is high. We know that the combustion of an alkane (of which gasoline is one) would produce carbon dioxide and water according to a balanced reaction equation.

The balanced reaction equation for the combustion of gasoline is shown in the image attached to this answer.

Since  a Puerto Rico hospital uses 3 gallons of gasoline per hour, and there are 24 hours in a day, it the follows that 72 gallons of gasoline are used per day. This 72 gallons is the equivalent of 272.88 L

Now;

Given that the density of gasoline = 748.9 g/L

Mass of gasoline = 748.9 g/L * 272.88 L = 204 Kg

Number of moles of gasoline =  204 * 10^3/114 g/mol = 1789.5 moles

If 2 moles of gasoline produces 16 moles of CO2

1789.5 moles produces  1789.5 moles * 16 moles/2 moles = 14316 moles

Mass of CO2 =  14316 moles * 44 g/mol = 630 Kg

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4 0
2 years ago
100 POINTS IF YOU ANSWER CORRECTLY Rotate these coordinates 180 around the origin and then translate 6 units to the left.
snow_tiger [21]
Original Coordinates: (-2, -8) (-6, -8) (-11, -1) (-7, -3)

A 180 degree rotation around the origin flips the signs of x and y, so you get:

(2, 8) (6, 8) (11, 1) (7, 3)

Then a translation to the left 6 units just subtracts 6 from all the x values:

(-4, 8) (0, 8) (5, 1) (1, 3)

Those are your points! Hope this helped!
8 0
3 years ago
Read 2 more answers
A new bank customer with $4000 wants to open a money market account the bank is offering a simple interest rate of 1.5% how much
Semenov [28]

Answer:

$1200

Step-by-step explanation:

Given data

Principal=$4000

Rate=1.5%

Time= 20years

The expression for simple interest is

SI= PRT/100

Substitute

SI= 4000*1.5*20/100

SI=120000/100

SI=$1200

Hence the interest is $1200

3 0
3 years ago
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