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
rodikova [14]
2 years ago
15

Ecuacion de 3.4x+2=22.4​

Mathematics
1 answer:
lidiya [134]2 years ago
6 0
Answer/respuesta:x=6

Step-by-step explanation paso-por-paso explication: Move the constant to the right-hand side and change its sign Subtract the numbers Divide both sides of the equation /Mover la constante al lado derecho y cambiar su signo Restar los números Dividir ambos lados de la ecuación por
You might be interested in
Bob purchased 2 hot dogs and 1 hamburger for S10. Later that day, Bob had to purchase more food and
Tom [10]

Answer:

Hotdog: $3.00

Hamburger: $4.00

Step-by-step explanation:

For the first time that Bob buys food, we can make an equation to find how much a single hotdog and a single hamburger costs, where:

x = cost of a hotdog

y = cost of a hamburger

He bought 2 hotdogs and 1 hamburger for $10, so the equation for his first time buying food is:

2x + y = 10

For the second time buying food, he bought 1 hotdog and 3 hamburgers for $15, so his equation would be:

x + 3y = 15

To find the value for x and y we need to solve this system of equations using the two equations we just came up with. We can do this multiple ways, but I'll be demonstrating the substitution method.

Using the second equation, we can solve for x by simply subtracting 3y from both sides:

x = 15 - 3y

We can then insert this value of x into the first equation so that way we are only dealing with one variable to solve - y:

2(15-3y) + y = 10

Distribute out the 2 into the paratheses, combine like terms, and then solve for y:

30 - 6y + y = 10

30 - 5y = 10

-5y = -20

y = 4

This means the cost for one hamburger is $4. But we still need to find the price of one hotdog, so we can insert this value of y into the equation we came up with earlier for x, and then solve for x:

x = 15 - 3y

x = 15 - 3(4)

x = 15 - 12

x = 3

So the price of one hotdog is $3 and the price of one hamburger is $4. Hope this helps.

3 0
2 years ago
The volumes of two similar solids have an 125 : 216 ratio. What is the ratio of their side lengths
Lubov Fominskaja [6]

Answer:

5:6

Step-by-step explanation:

To find the ratio of side lengths you need to cube root of the ratio of the volumes. The reason you use the cube root is because you are multiplying 3 things together when you find volume.

\sqrt[3]{\frac{125}{216} } =\frac{5}{6}

5 : 6

6 0
1 year ago
Solve the following system of equations graphically on the set of axes below.<br> Y=1/3x+6 y=-5/3x-6
Aleks [24]

Answer:

I can not solve it in the system of the image, but i will give you the graph so you can copy it, or at least see how it is done.

First, we have the lines:

y = (1/3)*x + 6

y = (-5/3)*x - 6

To graph these lines, you must find two points for the lines and then draw a line that connects the points.

To do it, you can evaluate each line in two different values of x, for example for the first line we can have:

y(0) = (1/3)*0 + 6 = 6   (then we have the point (0, 6))

y(3) = (1/3)*3 + 6 = 7    (then we have the point (3, 7))

And for the second line, we will have:

y(0) = (-5/3)*0 - 6 = -6 (then we have the point (0, -6))

y(3) = -(5/3)*3 - 6 = -11 (then we have the point (-3, -11))

Now with those points we can graph the lines, and the solution of the system of equation will be the point where the two lines intersect.

The graphs of the lines are shown below:

Where the grey line is the first one, and the green is the second.

In the graph, you can see that the lines intersect in the point (-6, 4)

Then the solution for the system is x = -6, and y = 4.

6 0
3 years ago
How do you solve this using special right triangle this is geometry
svlad2 [7]

Hello from MrBillDoesMath!

Answer:

11.1

Discussion:

cos(42) = x / 15    =>   multiply both sides by 15

x = 15 * cos(42)    => as cos(42) = .743 approx

x = 15 * (.743)

x = 11.15

Thank you,

MrB

3 0
3 years ago
Identify a pair of factors of −35 that has a sum of −2.
Allushta [10]

Answer:

-7 and 5

Step-by-step explanation:

If you multiply -7 and 5, you get -35

Add them, and you get -2.

6 0
1 year ago
Other questions:
  • Let g(x) = -4x2 – 3x – 7. Find the following:
    14·1 answer
  • What is the prime factorization of 676
    7·1 answer
  • Last question, could you please help me. Graphing the system of inequalities.
    15·1 answer
  • at a recent party it cost $9.50 for drinks for 10 guests at the rate how much would it cost to have drinks for 80 guest
    8·2 answers
  • I need help please I don't understand
    9·2 answers
  • A house costs 36% more today than when it built.if the cost of the house today is $333200,find its cost when it was built
    6·1 answer
  • A coffee maker priced at $189.99 is on sale for 20% off but then sales tax of 9% and 8% are added to the price after discount. W
    6·1 answer
  • A shoe store marks up the recommended price of a pair of shoes by 12.5% when they are first released. A month later, the store d
    12·1 answer
  • Identify the sum of the interior angle measures of a convex octagon.
    8·1 answer
  • If you wanted to shift the graph of y= 4x + 7 down, which equation could you use?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!