3 years ago

How do you work out -4(-5-b)=1/3(b+16)

Mathematics

1 answer:

Umnica [9.8K]3 years ago

5 0

First multiply the parenthesis:

20 - b = 1/3b + 16/3

Then combine like terms:

20 -b + b = 1/3b + b + 16/3

20 - 16/3 = 1/3b + b + 16/3 -16/3

20 - 16/3 = 1/3b + b

44/3 = 4/3b

and if your looking for b;

44/3 (divided by) 4/3 = b

11 = b...is your final answer!

hope it helped :)

You might be interested in

5x<br><img src="https://tex.z-dn.net/?f=5x%20%7B%20%7B%20%3D%2045%7D%5E%7B%3F%7D%20%7D%5E%7B2%7D%20" id="TexFormula1" title="5x

Ilia_Sergeevich [38]

$\bf 5x=45^2\implies x=\cfrac{45^2}{5}\implies x=\cfrac{2025}{5}\implies x=405$

8 0

4 years ago

What is the value of 3 to the power 2 over 3 to the power 4?

Tanzania [10]

3^2/3^4

To find the answer, we can use this equation:

a^m / a^n = a^m - n

We can now just use 2 - 4, which equals -2.

Now we have 3^-2

3^-2 in decimal form is 0.11111, which equal to 1/9

5 0

3 years ago

Read 2 more answers

Jane had 275 stickers, which she gave to her friends. Each friend got five more stickers than the friend before. If the first fr

Paha777 [63]

Answer:

10 friends

Step-by-step explanation:

we know that

The formula of the sum is equal to

$sum=\frac{n}{2}[2a1+(n-1)d]$

where

a1 is the first term

n is the number of terms (number of friends)

d is the common difference in the arithmetic sequence

In this problem we have

$sum=275\ stickers$

$a1=5\ stickers$

$d=5$ ----> the common difference

substitute in the formula and solve for n

$275=\frac{n}{2}[2(5)+(n-1)(5)]$

$550=n[10+5n-5]\\ \\550=10n+5n^{2} -5n\\ \\5n^{2}+5n-550=0$

Solve the quadratic equation by graphing

The solution is n=10

see the attached figure

therefore

She had 10 friends who got stickers

5 0

3 years ago

You are buying flowers for your algebra teacher. You buy a total of 30 flowers that are a mixture of roses and daisies for $66.

Anastasy [175]

Well, you’d buy 12 roses and 18 daisies, but in the first place you shouldnt buy flowers for your algebra teacher >.>

7 0

3 years ago

What is the X values such that y equals 15 - 3 X and Y equals 0 question

Oksana_A [137]

X=5. this is true because if y=0 and y=15-3x, then 15-3x=0. if x is 5, it would be 15-3(5)=0.

4 0

3 years ago