I need the step by step answer for 1/3(9x+3)=3x+1

Answers

Answer 1

Answer: 1/3 * 9x = 3x

1/3 * 3 = 1

3x + 1 = 4x

3x + 1 = 4x

4x=4x

Answer 2

Answer: 1/3(9x+3)=3x+1

3x+1=3x+1
-1 -1

3x=3x

3x=3x
/3 /3

x=x

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Twelve boys collected 16 aluminum cans each. Fifteen girls collected 14 aluminum cans each. How many more cans did the girls collect than boys?

Answers

The girls collected 18 more cans.

you need to find the total cans collected by boys and girls. To do this you multiply 16 and 12 for the guys cans and 15 and 14 for the girls cans.

Once you have your products you subtract them and you'll get 18 :)

The girls collected 18 more than the boys

Could someone please help me with this: Solution set of lx^2+mx+n=0 is?

Answers

Answer:

Quadratic equations have the solution

x = [-b +-sqr root(b^2 -4ac)] / 2a

In the given equation a = l; b = m and c = n So,

x = [-m +-sqr root(m^2 -4*l*n)] / 2*l

Step-by-step explanation:

How do i solve this equation

Answers

Your starting equation is: x/6 + 4 = 15 The first step would be to subtract 4 from both sides, to move all of the constants to the right side of the equation. x/6 = 11 The final step is to multiply both sides by 6, to get rid of the fraction on the left side of the equation. x = 66 Hope this helps!

$(x)/(6)+4=15$

$(x)/(6)=15-4$ $Subtract \ 4 \ from \ both \ sides$

$(x)/(6)=11$

$x=11*6$ $Multiply \ both \ sides \ by \ 6$

$x=66$ $Solution$

Find the output, k, when the input, t, is -7−7minus, 7.
k = 10t-19k=10t−19

Answers

The value of k is -89

Explanation:

The given expression is $k=10t-19$

We need to determine the output k, when the input t is -7

Output k:

The value of the output k can be determined by substituting the input $t=-7$ in the expression $k=10t-19$

Thus, we have,

$k=10(-7)-19$

Multiplying the terms 10 and -7, we have,

$k=-70-19$

Simplifying, we get,

$k=-89$

Thus, the value of k is -89

Answer:

-89

Step-by-step explanation:

khan

On the school playground, the slide is due west of the tire swing and due south of the monkey bars. If the distance between the slide and the tire swing is 9 meters and the distance between the tire swing and the monkey bars is 15 meters, how far is the slide from the monkey bars?

Answers

It would be 12 meters :)
Explanation: You woulde use Pythagorus theorum which is a2 + b2 = c2 because the slide, tire swing and monkey bard create a triangle.

15x15 = 225
9x9 = 81
225-81 = 144
Square root of 144 = 12 meters

28 Rowan raised $640 in a charity walk last year. This year he raised 15% more than he raised last year. How much money did Rowan raise this year?

Answers

rowan raised 640 last year
this year he raised 15% more
percent means parts out of 100
15%=15/100=3/20
15% of 640
'of' can be translated as multiply
15%=3/20
3/20 times 640=1920/20=192/2=96
this is 15%
he raised 15% MORE SO
640+96=this year=736

he raised 736 dollars this year

640$ - is 100% - in last yearin this year is 15% more, so 100+15=115%make proportion640 is 100%x is 115%x=640*115/100=736$Answer: Rowan raised 736$ this year

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