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Monica [59]
3 years ago
14

How many pieces each 15cm long can be cut from a string length 3m

Mathematics
2 answers:
yulyashka [42]3 years ago
8 0
3 meters = 300 centimeters. 15cm/300= 1/20 which = .05.
kumpel [21]3 years ago
8 0
You can cut 20 at 15 cm long
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Write an equation of a line parallel to y = -2x + 3 that passes through (-2,-1)
ElenaW [278]

\boxed{y=-2x-5}

<h2>Explanation:</h2>

The slope-intercept form of the equation of a line:

y=mx+b \\ \\ \\ Where: \\ \\ m:Slope \\ \\ b:y-intercept

The given line has the following characteristics:

y=-2x+3 \\ \\ \\ So: \\ \\ m=-3 \\ \\ b=3

So the line we are looking for needs to be:

y=-2x+b \\ \\ \\ It \ passes \ through \ (-2,-1): \\ \\ -1=-2(-2)+b \\ \\ b=-1-4 \\ \\ b=-5

So, the equation of the line would be:

\boxed{y=-2x+3}

<h2>Learn more:</h2>

Many-to-one function: brainly.com/question/12881881

#LearnWithBrainly

3 0
4 years ago
Help me please:’)
Lelechka [254]

Using the condition given to build an inequality, it is found that the maximum number of junior high school student he can still recruit is of 17.

<h3>Inequality:</h3>

Considering s the number of senior students and j the number of junior students, and that he cannot recruit more than 50 people, the inequality that models the number of students he can still recruit is:

s + j \leq 50

In this problem:

  • Already recruited 28 senior high students, hence s = 28.
  • Already recruited 5 junior high students, want to recruit more, hence j = j + 5.

Then:

28 + j + 5 \leq 50

33 + j \leq 50

j \leq 17

The maximum number of junior high school student he can still recruit is of 17.

You can learn more about inequalities at brainly.com/question/25953350

5 0
3 years ago
The square of a number minus six times a number equals negative five.
olga_2 [115]

Answer:

x² - 6x = -5

x = {1, 5}

Step-by-step explanation:

The square of a number minus six times a number equals negative five.

x² - 6x = -5

Add 5 to both sides

x² - 6x + 5 = 0

Factor

(x - 1)(x - 5) = 0

x = {1, 5}

3 0
3 years ago
Read 2 more answers
A/5+3=8<br><br> 3b/7-1=5<br><br> can anyone help?
Rasek [7]
A/5+3=8
a+15=40
a=25

3b/7-1=5
3b-7=35
3b=42
b=14
4 0
3 years ago
Read 2 more answers
Given the recursive formula shown, what are the first 4 terms of the sequence? image Question 19 options: A) 5, 20, 80, 320 B) 5
kvv77 [185]

Answer:

B) 5, 20, 80, 320

Step-by-step explanation:

Complete question

Given the recursive formula shown, what are the first 4 terms of the sequence?

f(1) = 5 if n=1

f(n) = 4f(n-1) if n> 1

A) 5. 25, 100, 400

B) 5, 20, 80, 320

C) 5, 25, 125, 625

D) 5. 14, 60, 236

Get f(2)

f(2) = 4f(2-1)

f(2) = 4f(1)

f(2) = 4(5)

f(2) = 20

Get f(3)

f(3) = 4f(3-1)

f(3) = 4f(2)

f(3) = 4(20)

f(3) = 80

Get f(4)

f(4) = 4f(4-1)

f(4) = 4f(3)

f(4) = 4(80)

f(4) = 320

Hence the first 4 terms of the sequence are 5, 20, 80 and 320

3 0
3 years ago
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