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borishaifa [10]
2 years ago
8

Problems MM

Mathematics
1 answer:
Darina [25.2K]2 years ago
7 0

Answer:

helloooooo

what supppppppppppp

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The number of boys in a school is 2000 less than the number of girls .Then find the number of girls in the school,if the total n
melamori03 [73]

Answer:

8000 girls

Step-by-step explanation:

3 0
3 years ago
URGENT HELP PLS PLS PLS
Gennadij [26K]

Answer:

15 kg

Step-by-step explanation:

Radius of a solid sphere : mass of a solid sphere

3 cm : 9 kg

Find the mass of a sphere of the same material of radius 5 cm

Radius of a solid sphere : mass of a solid sphere

5 cm : x kg

Equate both ratios to find x

3 cm : 9 kg = 5 cm : x kg

3/9 = 5/x

3 * x = 9 * 5

3x = 45

x = 45/3

x = 15 kg

The mass of a sphere of the same material of radius 5 cm is 15 kg

7 0
3 years ago
Find equation of a line with the given slope that passes through the given point. Write the equation in the form Ax + By = C.
attashe74 [19]

Answer:

5x + y = -28

Step-by-step explanation:

Hi there!

We're given that a line has a slope of -5 and contains the point (-4, -8)

We want to write the equation of this line in standard form

Standard form is given as ax+by=c, where a, b, and c are free integer coefficients, but a and b cannot be zero, and a cannot be negative

Before we write the equation in standard form however, we need to write it in slope-intercept form, which is y=mx+b, where m is the slope & b is the y intercept

As we are already given the slope, we can immediately plug that in for m in y=mx+b

y=-5x+b

Now to find b:

As the equation passes through the point (-4, -8), we can use its values to help solve for b

Substitute -4 as x and -8 as y:

-8 = -5(-4) + b

Multiply

-8 = 20 + b

Subtract 20 from both sides

-8 = 20 + b

-20  -20

__________

-28 = b

substitute -28 as b

y = -5x - 28

We found the equation in slope-intercept form, but remember, we want it in standard form

In standard form, both x and y are on the same side; so, let's move 5x to the other side; to do this, we need to add 5x to both sides

y = -5x - 28

+5x +5x

_________

5x + y = -28

Hope this helps!

3 0
2 years ago
What is the missing term in the factorization?
jasenka [17]
  • <em>Answer:</em>

<em>the missing term is 5</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>12x² - 75 = </em>

<em>= 3(4x² - 25)</em>

<em><u>use formula</u></em><em> a² - b² = (a - b)(a + b)</em>

<em>= 3(2x - 5)(2x + 5)</em>

<em>= 3(2x + 5)(2x - 5) </em>

<em>the missing term is 5</em>

<em>Good luck !</em>

4 0
3 years ago
Identify examples and non-examples of the standard form of a linear function.
marin [14]

Answer:

  1. 5x - 3y = 9 (Example)
  2. y = 1/2x - 3 (Non-Example)
  3. 2x + 3y = 0 (Example)
  4. x + y = 1 (Example)
  5. x = 6y (Non-Example)
  6. y = x - 2 (Non-example)

Step-by-step explanation:

Standard form of the equation is given by:

Ax + By = C

Where

  • x and y are variables
  • A, B and C are constants which must be Integers. A should always be positive.

Considering the definition, we can identify the examples and non-examples of standard from of a linear equation.

<h3>5x - 3y = 9</h3>
  • In a form of Ax + By = C
  • A,B and C are constants
  • A=5 is positive

It is an EXAMPLE of standard form of linear function

<h3></h3><h3>y = 1/2x - 3</h3>
  • Not in the form of Ax + By =C

NON-EXAMPLE

<h3></h3><h3>2x + 3y = 0</h3>
  • In a form of Ax + By = C
  • A,B and C are constants
  • A=5 is positive

It is an EXAMPLE of standard form of linear function

<h3></h3><h3>x + y = 1</h3>
  • In a form of Ax + By = C
  • A,B and C are constants
  • A=5 is positive

It is an EXAMPLE of standard form of linear function

<h3></h3><h3>x = 6y</h3>
  • Not in the form of Ax + By =C

NON-EXAMPLE

<h3></h3><h3>y = x - 2</h3>
  • Not in the form of Ax + By =C

NON-EXAMPLE

6 0
3 years ago
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