How do I solve for x? X+6x=56

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

8 0

X+6x=56

7x=56

x= 8

So, x is equal to 8

belka [17]3 years ago

7 0

$ax^2+bx+c=0$
$x^2+6x=56$
$x^2+6x-56=0$
a=1 b=6 c=-56
$\Delta=b^2-4ac=6^2-4*1(-56)=36+224=260$
$\sqrt{\Delta}=2\sqrt{65}$
$x_1=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-6-2\sqrt{65}}{2*1}=-3-\sqrt{65}$
$x_2=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-6+2\sqrt{65}}{2*1}=-3+\sqrt{65}$

You might be interested in

2. A bag contains 3 red, 4 white, and 5 blue marbles. Jason begins removing marbles from the bag at

galben [10]

Answer:

the total number of marbles are 12 and there are 3 colours so you divide 12 by 3

6 0

2 years ago

Read 2 more answers

4) During a school carnival, students from the middle school raised money by selling crafts, food, game tickets, and school play

ioda

$225 was earned from the craft sales

and $40 was earned from the play.

Given, During a school carnival, students from the middle school raised money by selling crafts, food, game tickets, and school play admissions.

Of each dollar earned, $0.15 came from games. Craft sales earned 3 times as much as games. Food sales were 4 times the amount earned from the play.

Let the amount earned by play be x,

Now, Games earned = 0.15×500 = $75

Also, crafts earned 3×75 = $225

Now, as play earned x, then food earned 4x.

According to question,

x + 75 + 225 + 4x = 500

5x + 300 = 500

5x = 200

x = 40

So, the amount earned by Play be, $40

and the amount earned by Food be $160.

Hence, $225 was earned from the craft sales