All categories

3 years ago

-4(1 -6b) - 5 ( 2b - 6)= 8b - 7b

Mathematics

2 answers:

Citrus2011 [14]3 years ago

5 0

The answer is b=-2 Hope that helps!!

aksik [14]3 years ago

4 0

-4(1-6b)-5(2b-6)=8b-7b

We move all terms to the left:

-4(1-6b)-5(2b-6)-(8b-7b)=0

We add all the numbers together, and all the variables

-4(-6b+1)-5(2b-6)-(+b)=0

We multiply parentheses

24b-10b-(+b)-4+30=0

We get rid of parentheses

24b-10b-b-4+30=0

We add all the numbers together, and all the variables

13b+26=0

We move all terms containing b to the left, all other terms to the right

13b=-26

b=-26/13

b=-2

You might be interested in

Jeremy surveyed students in his class about their spending habits in the school cafeteria. He used the data to create a scatterp

marissa [1.9K]

Answer:

Step-by-step explanation:

From the graph, you can first see that there is a positive slope, and a negative y intercept. That should automatically rule out the first option.next, find the slop...

To do this take the two points that are given (2,5.5) and (5,15.25) and do rise over run. This would be (15.25-5.5)/(5-2). I just put this in a calculator and found the slope to be 3.25. You automatically know the answer because the only equation with the slope 3.25 is the third one.

7 0

3 years ago

Read 2 more answers

Sam had $145 to spend on six books after buying them he had $13 how much did each book cost

Y_Kistochka [10]

Answer:

The answer is 24.166666667.

Step-by-step explanation:

145 divided by 6 is 24.166666667.

7 0

3 years ago

Your bill from Acme Supply Company is marked "3/15, net 30." The amount of the bill is $289.95. If you pay the bill within 15 da

Lyrx [107]

289.95* .97

Answer= C. 281.25

7 0

3 years ago

Read 2 more answers

What is the distance between 120 and -130 on a number line?

kvv77 [185]

Answer:

250

Step-by-step explanation:

120 is 120 spaces from zero

-130 is 130 spaces from zero

130+120=250

250 spaces from each other

8 0

2 years ago

Read 2 more answers

Find the coefficient of x^4 in the expansion of (1 + 2x + 3x^3)^10?

Lesechka [4]

$(1+2x+3x^3)^{10}$

The only possible configurations of terms that contribute to generating the $x^4$ term in the expansion are given by the multinomial theorem to be

$\left(\dbinom{10}{6,4,0}(1)^6(2x)^4(3x^3)^0+\dbinom{10}{8,1,1}(1)^8(2x)^1(3x^3)^1\right)x^4$

where

$\dbinom{10}{k_1,\ldots,k_m}=\dfrac{10!}{k_1!\cdots k_m!}$

Simplifying a bit gives a coefficient of

$\dbinom{10}{6,4,0}(2)^4+\dbinom{10}{8,1,1}(2)(3)$
$16\dbinom{10}{6,4,0}+6\dbinom{10}{8,1,1}$
$16\dfrac{10!}{6!4!0!}+6\dfrac{10!}{8!1!1!}$
$16(5\times3\times2\times7)+6(10\times9)=3900$

3 0

3 years ago