3 years ago

Please I need help with that question

Mathematics

1 answer:

fomenos3 years ago

3 0

We know that 2x + 5 = 10 - 3x, and because of this we can solve for x.

2x + 5 = 10 - 3x

+3x

5x + 5 = 10

-5

5x = 5

x = 1

We can plug x into each x value to verify if this is true.

2(1) + 5 = 10 - 3(1)

2 + 5 = 10 - 3

7 = 7

You might be interested in

Can someone tell yo yo sis how do I

Evgesh-ka [11]

You know 0.4/0.25=x/15 so then do 0.4/0.25=1.6 then take 1.6 times 15 = 24

7 0

2 years ago

60 min is 20 percent of blank min

valkas [14]

If you make 60 become 6 and 20 become 2, then multiply them both by eachother you get 30. Add a zero to compensate for the ones you took out of the other 2 number. There ya go

3 0

2 years ago

How many pairs of whole numbers have a sum of 40

Ahat [919]

It is 20
39+1
38+2
37+3
36+4
35+5
<span>Until you get to 20+20</span>

3 0

2 years ago

To estimate the height of a totem pole, Jorge uses a small square of plastic. He holds the square up to his eyes and walks backw

Ghella [55]

The height of the pole is 6.50 meters

<h3>How to calculate the height?</h3>

To calculate the height of the pole, we will use of the following equivalent ratios.

By Pythagoras theorem, we have:

$x ^2 = 2^2 + 3^2\\\\x ^2 = 4 + 9\\\\x = \sqrt{13}$

So, we have:

$h = \dfrac{\sqrt{13}^2 }{2} \\\\h = \dfrac{13}{2}\\\\h = 6.5$

Hence, the height of the pole is 6.50 meters