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
IgorC [24]
3 years ago
9

Help please i wasnt there when we learned this.

Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0
<h3><u>The first number, x, is equal to 33.</u></h3><h3><u>The second number, y, is equal to 23.</u></h3><h3><u>The third number, z, is equal to 46.</u></h3>

x + y + z = 102

z = 2y

x = 10 + y

Because we have values of x and z, we can plug them into the original equation to solve for y.

10 + y + y + 2y = 102

Combine like terms.

4y + 10 = 102

Subtract 10 from both sides.

4y = 92

Divide both sides by 4.

y = 23

Now that we have a value for y, we can find the value of x and z.

z = 2(23)

z = 46

x = 10 + 23

x = 33

You might be interested in
If the following system of equations was written as a matrix equation in the form AX = C,? and matrix A was expressed in the for
Tomtit [17]

The value of the expression a - b + c + d will be 7.

<h3>What is the matrix?</h3>

A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij} element in a matrix, such as M, refers to the i-th row and j-th column element.

The system of equations are given below.

5x + 7y = 7

3x - 2y = 9​

Then the equations can be written in the form of matrix. Then we have

\begin{bmatrix}5 & 7 \\3 & -2 \\\end{bmatrix} \begin{bmatrix}x \\y \\\end{bmatrix} = \begin{bmatrix}7 \\9 \\\end{bmatrix}

Then the value of a, b, c, and d will be

a = 5, b = 3, c = 7, and d = -2

Then  the value of the expression will be

a - b + c + d = 5 - 3 + 7 - 2

a - b + c + d = 12 - 5

a - b + c + d = 7

More about the matrix link is given below.

brainly.com/question/9967572

#SPJ1

3 0
2 years ago
Fill in the table using this function rule.<br> y = 5x+4
olya-2409 [2.1K]
No idea man

Explanation: I don’t man I just wang pints
3 0
3 years ago
If a publisher of nontechnical books takes great pains to ensure that its books are free of typos, so that the probability of an
Troyanec [42]

Answer:

(a) 0.2707

(b) 0.8576

Step-by-step explanation:

5 0
3 years ago
Can someone help me with this proof
larisa86 [58]

The fourth option is the correct answer.

Hope this helps! ;)

8 0
3 years ago
Read 2 more answers
A motorboat travels Downstream on a river for 5 hours. The speed of the current is 2 km/h. The river flows into a still Lake and
lara [203]

Answer:

I think it is 10 km/hr

Step-by-step explanation:

5 hrs = 40 more with 2 km/hr current

2 hrs= less 40 no current

40-2x5=30

30 without current for three hours

30/3=10 km/hr no current

CHECK

10x2=20

10x5=50+2x5=60

8 0
3 years ago
Other questions:
  • Find the value of x so that the figures have the same area.<br><br> 25ft, x-6 ft<br><br> x ft, 15ft
    12·1 answer
  • Define a new random variable by y = 2px. show that, as p l 0, the mgf of y converges to that of a chi squared random variable wi
    6·1 answer
  • 39,189 rounded to nearest thousand
    14·1 answer
  • PLEASE HELP MEE!!! MAX POINTS AND BRAINLIEST!!
    8·1 answer
  • Divide 216 into the ratio 1;5
    10·1 answer
  • Choose the correct formula for combination.<br> A . n!/r!(n-r)!<br> B. n!/(n-r)!
    8·1 answer
  • A math question I need help in
    8·1 answer
  • Choose all of the equations for which x = 1/2 is a solution
    8·2 answers
  • The spinner above is used in a game. What is the theoretical probability of the given event with one spin? P (5)
    15·1 answer
  • PLSS HELP ME WITH THIS! 25 POINTS!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!