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Nataliya [291]
2 years ago
7

Please need help I will be MARKING as BRIANILIST. thank you so much. ​​

Mathematics
2 answers:
Elena L [17]2 years ago
6 0

Answer:

C

Step-by-step explanation:

1 page every 3 minutes

18 pages will take 3 × 18 = 54 minutes to read.

dlinn [17]2 years ago
3 0

Answer:

C. Multiply 3 by 18

Step-by-step explanation:

Susan reads:

1 page in 3 mins

So,

1 page = 3 mins

<u><em>If we want the time for 18 pages, we would multiply both sides by 18</em></u>

So,

18 pages = 3×18 mins

18 pages = 54 mins

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What cryptographic method, first proposed in the mid-1980s, makes use of sloping curves instead of large prime numbers?
bearhunter [10]

Answer:

waffaafa

Step-by-step explanation:

awfafafafafaf

4 0
3 years ago
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up. The
Nikolay [14]

The length of the ladder nearest hundredth of a foot is 23 feet.

We have given that,

An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up.

The ladder makes an angle of 77^{\circ}  the ground.

<h3>What is the sin ratio?</h3>

sin(\theta)=\frac{perpendicular \ side}{hypotenous}

Therefore we get,

\implies\frac{22}{H} =sin(77)

\implies H=22/sin(77)

\implies 22.59ft\\\\=23ft

Therefore, The length of the ladder nearest hundredth of a foot is 23 feet.

To learn more about the trigonometric ratio visit:

brainly.com/question/24349828

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7 0
1 year ago
Solve the system of equations by substitution
scoundrel [369]

Answer:

(x, y) = (1, 3)

Step-by-step explanation:

given the 2 equations

x + y = 4 → (1)

y = 3x → (2)

Substitute y = 3x into (1)

x + 3x = 4

4x = 4 ( divide both sides by 4 )

x = 1

Substitute x = 1 into (2) for corresponding value of y

y = 3 × 1 = 3

solution is (1, 3 )


7 0
3 years ago
Debbie runs 4 miles during each track practice. How many track practices would it take for Debbie to run 8 miles?
forsale [732]

Answer:

two

Step-by-step explanation:

4×2 because she runs 4 each day

7 0
3 years ago
Brody calculated the area of a square to be 1636 square foot.
andrew-mc [135]

Answer:

Step-by-step explanation: D

5 0
3 years ago
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