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marshall27 [118]
3 years ago
9

Please help I've been have trouble with it.

Mathematics
2 answers:
sashaice [31]3 years ago
8 0

Answer:

b.

Step-by-step explanation:

kakasveta [241]3 years ago
3 0
It should be Answer D. I hope this helps. I also hope you have a great day!!!
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Wale was twice as old as Ajay 10 years back. How old is Ajay today if Wale will be 40 years old 10. years hence?​
vagabundo [1.1K]

Using a system of equations, it is found that Ajay is 25 years old today.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Wale's age.
  • Variable y: Ajay's age.

Wale was twice as old as Ajay 10 years back, hence:

x - 10 = 2(y - 10)

x - 10 = 2y - 20

x = 2y - 10

Wale will be 40 years old in 10 years, hence:

x + 10 = 40

x = 40

Then, Ajay's present age is found as follows.

2y = x + 10

2y = 40 + 10

y = \frac{50}{2}

y = 25

You can learn more about system of equations at brainly.com/question/14183076

4 0
3 years ago
Read 2 more answers
a cylinder and a cone have the same volume. the cylinder has a radius of 2 inches and height of 3 inches. the cone has a radius
kaheart [24]

Answer:

Step-by-step explanation:

Volume of a cylinder = pi*(xx)^2*yy

= x^4*pi*yy

Volume of a cone = 1/3*pi*(9x^2)^2*h

= 27pi*x^4*h

x^4*pi*y^2 = 27pi*x^4*h

h = y^2 / 27

3 0
3 years ago
Domain and range of y=-2x^2+12x-15
Dominik [7]
Answer:
Domain is (-infinity,infinity)
Range is (-infinity,3)

8 0
3 years ago
simplify square root of 150 a. 5* square root of 6 b. 6* square root of 5 c. 26* square root of 6 d. 36* square root of 5
expeople1 [14]
\sqrt{150}=\sqrt{25\cdot6}=\sqrt{25}\cdot\sqrt6=\boxed{5\sqrt6}\to\fbox{a.}
7 0
3 years ago
Evaluate the determinant for the following matrix:
VLD [36.1K]
The determinat of

| a     b |
|           |
|c      d |

is: a*d - b*c

So the determinant of:

|3    -5 |
|           |
|1       1 |

is 3 * 1 - 1 * (-5) = 3 + 5 = 8

Answer: option D. 8
3 0
3 years ago
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