3 years ago

Solve 10a-5b=25 for b

Mathematics

1 answer:

devlian [24]3 years ago

6 0

   10a - 5b = 25
10a - 10a - 5b = 25 - 10a
   -5b = -10a + 25
      -5 -5
      b = 2a - 5

You might be interested in

Help help math math math

Morgarella [4.7K]

The answer is x = 8

thank u

7 0

2 years ago

Read 2 more answers

I need help with question 18 PLS!!!!

dolphi86 [110]

Answer:

162

Step-by-step explanation:

( -a ) ( b ) ( -a + b )

-6 ( 3 ) ( -6 + -3 )

-6 ( 3 ) ( -9 )

- 18 ( -9 )

162

6 0

2 years ago

Which person would be eligible to run for president of the United States in the Election of 2020?

Temka [501]

Answer:

C. Tiffany, born in 1973 in Nebraska, has lived in the U.S. for 45 years

Step-by-step explanation:

its right bro

5 0

3 years ago

Read 2 more answers

X subtract 9 equals 3 / 5X

Korvikt [17]

Answer:

$x=22\frac{1}{2}=22.5$

Step-by-step explanation:

$x-9=\frac{3}{5}x$

First, lets get rid of the fraction. I did this by multiplying both sides by $5$ .

$5(x-9)=5(\frac{3}{5}x)\\5x-45=\frac{5}{1} *\frac{3}{5}x\\5x-45=\frac{15}{5}x\\5x-45=3x$

We want to isolate $x$ on one side of this equation. Let's put any values with $x$ on one side of the equation, and normal integers on the other.

$2x=45$

Divide both sides by $2$ .

$x=\frac{45}{2}$

If your teacher wants you to leave your final answer as an improper fraction, your final answer is this. If they want it to be a mixed number or decimal, your final answer will be:

$x=22\frac{1}{2}=22.5$

7 0

3 years ago

Pls i need the answer to this question

steposvetlana [31]

Answer:

x ≤ 0

Step-by-step explanation:

2x² ≤ 0

2x² / 2 ≤ 0 / 2

x² ≤ 0

x²/ x ≤ 0 / x

x ≤ 0

6 0

2 years ago