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Len [333]
3 years ago
14

The arc length of an arc subtended by an angle measuring 7π/18 radians is 24.6 inches.

Mathematics
1 answer:
IrinaK [193]3 years ago
6 0

See picture reply for answer.

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I really need help on this question
Snowcat [4.5K]

Answer:

<h2>24</h2>

Step-by-step explanation:

Since 20 is 4/3 * 15, the answer must be 4/3 * 18

4/3 * 18 = 24, so the answer is 24

7 0
2 years ago
Please help me please!!
frozen [14]
3/4 is the correct answer
3 0
2 years ago
There are nickles and quarters worth $2.20 in total. If there are 28 coins, how many nickels are there?
Eduardwww [97]
Answer:

There are 24 nickels

Step-by-step explanation:

Let x represent the number of nickels

Let y represent the number of quarters
—————————————————————

Value Value
Type Number of of
of of each all
Coin Coin Coin Coin
—————————————————————
Nickels | x | $0.05 | $0.05x
Quarters | y | $0.25 | $0.25y
—————————————————————
Totals 28 ——— $2.20
•••••••••••••••••••••••••••••••••••••••••••••••••

The first equation comes from the “Number of coins” column.

(Number of nickels) + (Number of quarters) = (total number of coins)

Equation: x + y = 28
—————————————————————
The second equation comes from the “value of all coins” column.

(Value of all nickels) + (Value of all quarters) = (Total value of all coins)

0.05x + 0.25y = 2.20

Remove the decimals by multiplying each term by 100:

5x + 25y = 220
—————————————————————
So we have the system of equations:

{x + y = 28
{5x + 25y = 202

Solve by substitution. Solve the first equation for y:

x + y = 28
y = 28 - x

Substitute (28 - x) for y in 5x + 25y = 220

5x + 25 (28 - x) = 220
5x + 700 - 25x = 220
-20x + 700 = 220
-20x = -480
x = 24

The number of nickels is 24.
————————————————————
Substitute in y = 28 - x
y = 28 - (24)
y = 4

The number of quarters is 4.
————————————————————
Checking:

24 nickels is $1.20 and 4 quarters is $1.00
That’s 28 coins.
Indeed $1.20 + $1.00 = $2.20
————————————————————

6 0
3 years ago
Suppose you invest $20,000 at the age of 40, and agree to start receiving
prohojiy [21]

Answer:

a

Step-by-step explanation:

just tryna get brainley points

6 0
3 years ago
Read 2 more answers
ryan bought a house for 120000 and his house is fina ed at a rate of 7.4% and the payoff os in 120 months . how much is his mont
sleet_krkn [62]

Answer: p=354.3

Step-by-step explanation:

3 0
3 years ago
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