All categories

3 years ago

5. Find the value of x. (1 point) (5x +15) (6x -10) 1 5 25 140

Mathematics

2 answers:

exis [7]3 years ago

5 0

Answer:

x=25

Step-by-step explanation:

5x+15=6x−10

Step 1: Subtract 6x from both sides.

5x+15−6x=6x−10−6x

−x+15=−10

Step 2: Subtract 15 from both sides.

−x+15−15=−10−15

−x=−25

Step 3: Divide both sides by -1.

−x −1 = −25 −1

X=25

abruzzese [7]3 years ago

3 0

The answer to this is X=2.2

You might be interested in

Solve the equation or formula for the indicated variable.

alex41 [277]

Subtract 3 both sides first. R-3=ts²

next, divide both sides by t, (R-3)/t=s²

finally, take the square root of both sides

√(R-3)/t = s. 2nd choice.

3 0

3 years ago

Read 2 more answers

If you have 186 pencils, how many how many will each person get in a class that has 23 students?

Brut [27]

Answer:

Step-by-step explanation:

total number of pencils = 186

number of students = 23

number of pencils each student gets = number of pencils ÷ number of pencils

=186/23

=8.08

so each student gets 8 pencils

6 0

3 years ago

Find the x-intercepts of the parabola with vertex (1,-108) and y-intercept (0,-105). Write your answer in this form: (X1,y1), (x

Stolb23 [73]

Answer:

(7, 0) and (-5, 0)

Step-by-step explanation:

<u>Vertex form</u>

$y=a(x-h)^2+k$

(where (h, k) is the vertex)

Given:

vertex = (1, -108)

$\implies y=a(x-1)^2-108$

Given:

y-intercept = (0, -105)

$\implies a(0-1)^2-108=-105$

$\implies a(-1)^2=-105+108$

$\implies a=3$

Therefore:

$\implies y=3(x-1)^2-108$

The x-intercepts are when y = 0

$\implies 3(x-1)^2-108=0$

$\implies 3(x-1)^2=108$

$\implies (x-1)^2=36$

$\implies x-1=\pm \sqrt{36}$

$\implies x=1\pm 6$

$\implies x=7, x=-5$

Therefore, the x-intercepts are (7, 0) and (-5, 0)

7 0

2 years ago

What is the simplified form of the following expression (5/4)^3

Vlad [161]

★ EXPONENTIALLY RESOLVED ★

(5/4)^3

= 5 ( 5 ) ( 5 ) / 4 ( 4 ) (4 )

= 25 ( 5 ) / 16 ( 4 )

= 125 / 64

★✩★✩★✩★✩★✩★✩★✩★✩★✩★✩★

3 0

3 years ago

Area of a regular octagon with radius 8

bixtya [17]

Step-by-step explanation:

Area of the octagon = 2(1+√2)8=309.02 units

3 0

3 years ago