1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
9966 [12]
2 years ago
10

19=5+7x i need explanation it’s two step equation btw

Mathematics
2 answers:
nikklg [1K]2 years ago
6 0

Answer:

x = 2

Step-by-step explanation:

subtract both sides by 5. left with 14=7x. divide both sides by 7. x=2

Marysya12 [62]2 years ago
3 0

Answer:

  • \boxed{\sf x=2}

Step-by-step explanation:

\sf 19 =5+7x

First, let's swap sides so that all variable terms are on the left hand side.

\sf 5+7x=19

<u>Subtract 5 from both sides:</u>

<u />\sf 7x=19-5

<u>Subtract 5 from 19:</u>

<u />\sf 7x=14

<u>Divide both sides by 7:</u>

<u />\sf \cfrac{7x}{7} =\cfrac{14}{7}

\sf x=2

_____________________________________

You might be interested in
Julio bought tables and chairs for his restaurant. He bought 16 total items and spent $1800. Each table cost $150 and each chair
uysha [10]

Answer:

He bought 6 chairs and 10 tables.

Step-by-step explanation:

x+y = 16

he spent = $1800

1 chair = $50

y chairs = $50y

1 table = $150

x chairs = $150x

so, 150x+50y = 1800

we got two equations :

x+ y = 16

150x+50y = 1800

Using. substitution method,

x+y = 16

so, x = 16-y

Now

150x+50y =1800

or, 150(16-y) + 50y = 1800

or, 2400-150y+50y = 1800

or, 2400-1800 = 150y-50y

or, 600=100y

so, y = 6

now,

x+y = 16

or, x + 6 = 16

so, x = 10

4 0
2 years ago
Find the total mass of the triangular region shown below. All lengths are in cm, and the density of the region is sigma(x) = 1 +
anastassius [24]

Answer:

3 grams

Step-by-step explanation:

We are going to take the mass of a bunch of little strips below the triangle "roof." To do this, we must figure out what formula for the mass we'll use, in this case, we'll use:

Mass of strip = denisty * area = (1+x)*y*deltax grams

now, because the "roof" of the triangle contains two different integrals (it completely changes direction), we will use TWO integrals!

**pretend ∈ is the sum symbol

Mass of left part = lim x->0 ∈ (1+x)*y*deltax = inegral -1 to 0 of (1+x)*3*(x+1) = 3 * integral -1 to 0 of (x^2 + 2x + 1) = 3 *  1/3 = 1

Mass of left part = lim x->0 ∈ (1+x)*y*deltax = inegral 0 to 1 of (1+x)*3*(-x+1) = 3 * integral 0 to 1 of (-x^2 + 1) = 3 * 2/3 = 2

Total mass = mass left + mass right = 1 + 2 = 3 grams

8 0
3 years ago
What is the value of x in the equation 3(2x+8)=0
maxonik [38]

Answer:

x = -4

Step-by-step explanation:

3(2x+8)=0

Divide each side by 3

3/3(2x+8)=0/3

2x+8 = 0

Subtract 8 from each side

2x+8-8=0-8

2x = -8

Divide by 2

2x/2 = -8/2

x = -4

7 0
3 years ago
The slope of the line is m=3/4. One point is (x, 2) and (3,-4)<br> Find X
Viktor [21]

Answer:

x is 11

Step-by-step explanation:

We know the slope (3/4) and a point (3,-4), so we can use point-slope form (y-y1=m(x-x1)

Substitute the numbers into the equation

y--4=3/4(x-3)

simplify

y+4=3/4(x-3)

do the distributive property

y+4=3/4x-9/4

subtract 4 from both sides

y=3/4x-25/4

this is the equation of the line.

Since it says that (x,2) is a point in the equation, we can substitute it into the equation

2=3/4x-25/4

add 25/4 to both sides

33/4=3/4x

multiply by 4/3

11=x

we can double check by plugging (11,2) into the equation of the line.

2=3/4(11)-25/4

2=33/4-25/4

2=2

it works! :)

Hope this helps!

7 0
2 years ago
A large adult kangaroo can have a mass of 90,000 grams. How many kilograms is it. (1g =1,000g)
liubo4ka [24]
1kg=1,000g!!!\\\\therefore\ 1g=\frac{1}{1,000}kg=0.001kg\\--------------------\\90,000g=90,000\cdot0.001kg=\boxed{90kg}\\\\Answer:\boxed{\boxed{90,000g=90kg}}
3 0
3 years ago
Read 2 more answers
Other questions:
  • The point (3,0) lies on a circle with the center at the origin. What is the area of the circle to the nearest hundredth?
    11·1 answer
  • 2520 kilobytes in 18 seconds kilobytes per second
    11·1 answer
  • If f(x)= x/x-1 what is f^-1(x)
    8·1 answer
  • Natalie has 24 pairs of white tennis shoe out of 90 pairs of shoes. Use estimation to find the percent of her shoe that are whit
    6·1 answer
  • 3x+y= 7 2x+y= 6 what is x and what is y
    12·1 answer
  • Help!!!! I will give you brainiest!!!! Pls<br><br> find the solution of y=3x+5 for x=-2
    10·2 answers
  • Theorem 8.18 and the Pythagorean Theorem to find the side lengths of the kite . Write the lengths in simplest radical form and a
    10·1 answer
  • In a right triangle, sin(40 - 2) = cos(32)'. What is the value of x?
    10·1 answer
  • The weekly salaries of six employees at McDonalds are $140, $220, $90, $180, $140, $200. For these six salaries, determine: (a)
    11·1 answer
  • The tables give the price of a kayak rental from two different companies.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!