3 years ago

A number increased by 25% becomes 30 the number is

Mathematics

1 answer:

Masteriza [31]3 years ago

6 0

Answer:

Step-by-step explanation:

Let 'x' be the number

x +25% of x = 30

x + 0.25x = 30

1.25x = 30

x = 30/1.25

x = 24

You might be interested in

In systems by substitution what is y=x+8 and x+y=2

LenKa [72]

Answer:

x = -3

Step-by-step explanation:

y = x + 8 and x + y = 2

Using substitution, we know that y = x + 8, so:

x + y = 2

x + (x + 8) = 2

2x + 8 = 2

2x = -6

x = -3

Then we solve for y:

x + y = 2

-3 + y = 2

y = 2 + 3

y = 5

3 0

3 years ago

The volume of a rectangular prism is (x^3-3x^2+5x-3)/(x^3-2)

Trava [24]

The volume of a rectangular prism = its base area * height

substitute:

x3 – 3x2 + 5x – 3 = (x2 – 2) * h

h= (x3 – 3x2 + 5x – 3)/(x2 – 2)

so you can use the long division

3 0

4 years ago

Which of the following could be the system of nonlinear inequalities graphed below?

Ivan

Answer:

Option A.

Step-by-step explanation:

step 1

we know that

The equation of the solid line is

$y=5$

The solution is the shaded area above the solid line

The equation of the first inequality is

$y\geq 5$

step 2

The equation of the dashed line is

$y=x^{2} -5x+6$

The solution is the shaded area above the dashed line

The equation of the second inequality is

$y>x^{2} -5x+6$

therefore

The system of inequalities could be

$y\geq 5$

$y>x^{2} -5x+6$

4 0

4 years ago

80 members decreased by 65% =

BabaBlast [244]

65% of 80 is 52

52 Members

3 0

3 years ago

What is the value of b 2 - 4ac for the following equation? 2x 2 3x = -1 0 1 17

sweet-ann [11.9K]

For 2x^2 + 3x = -1 => 2x^2 + 3x + 1 = 0 => a = 2, b = 3, c = 1
b^2 - 4ac = 3^2 - (4 x 2 x 1) = 9 - 8 = 1

4 0

4 years ago

A number increased by 25% becomes 30 the number is​

A number increased by 25% becomes 30 the number is