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
Finger [1]
3 years ago
7

Solve this equation for x in terms of y and z:

Mathematics
2 answers:
lora16 [44]3 years ago
6 0

Answer:

x = 5

Step-by-step explanation:

9x + 3y + 4z = 24

9x + 3(9) + 4(-12) = 24

9x + 27 + (-48) = 24

9x + 27 - 48 = 24

9x - 21 = 24

9x = 24 + 21

9x = 45

x = 45 ÷ 9

x = 5

Alex Ar [27]3 years ago
4 0
3y = 3 * 9 = 27
4z = 4 * -12 = -48
: -48 + 27 = -21
: -21 + x = 24
: X = 45.
I hope that makes sense.
You might be interested in
Find 4 divided by 1/5 Simplify the answer and write as a whole number
Nitella [24]

Answer:

20

Step-by-step explanation:

Hope this helps! Have a great day ahead. Tell me if im wrong :)

4 0
3 years ago
Read 2 more answers
Given the first three terms of a linear sequence: 3x – 2;x+9; 2x + 5 Determine the value of x.​
Yuliya22 [10]

Answer:

x = 5

Step-by-step explanation:

The difference between consecutive terms will be equal , then

a₂ - a₁ = a₃ - a₂ , that is

x + 9 - (3x - 2) = 2x + 5 - (x + 9) ← distribute parenthesis on both sides

x + 9 - 3x + 2 = 2x + 5 - x - 9 , simplify both sides

- 2x + 11 = x - 4 ( subtract x from both sides )

- 3x + 11 = - 4 ( subtract 11 from both sides )

- 3x = - 15 ( divide both sides by - 3 )

x = 5

5 0
3 years ago
Read 2 more answers
Suppose y varies directly with x. Write a direct variation equation to relate x and y if y = 10 when x = 2
Ksivusya [100]

Answer:

y=5x and y=40 when x=8

4 0
3 years ago
Read 2 more answers
Find the sum of a finite geometric sequence from n=1 to n=8, using the expression -2(3)^n-1
MissTica
\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}
\end{cases}
\\\\\\
\sum\limits_{n=1}^{8}~-2(3)^{n-1}~~
\begin{cases}
n=8\\
a_1=-2\\
r=3
\end{cases}\implies S_8=-2\left( \cfrac{1-3^8}{1-3} \right)
\\\\\\
S_8=\underline{-2}\left( \cfrac{1-6561}{\underline{-2}} \right)\implies s_8=1-6561\implies S_8=-6560
8 0
3 years ago
How do I solve this math problem
Angelina_Jolie [31]

Answer:

Cross Multiply.

Step-by-step explanation:

Multiply the denominator (3) of one side and the numerator (n).

Then, multiply the numerator (2) of on side and the denominator (4) of the other.

3n = 8

You divide both sides by 3 to have n be by itself, equaling ~2.6 or 8/3.

4 0
3 years ago
Other questions:
  • (GEOMETRY. REAL HELP PLS) Triangle DEF is an isosceles, so DEF = DFE.
    5·2 answers
  • the clock below shows the time when amber leaves home from school.At what time does amber leave home
    13·1 answer
  • The owner of a health club decides to reduce the $35 membership fee by $5. What is the approximate percent
    14·1 answer
  • What is -9.6 repeating written as a fraction
    7·1 answer
  • ) a rectangular box has length 12 inches, width 20 inches, and a height of 7 inches. find the angle between the diagonal of the
    6·1 answer
  • Booker owns 85 video games. he has 3 shelves to put the games on. Each shelf can hold 40 videp games. how many more video games
    14·1 answer
  • What is 2 2/3 divided by 1 1/2 ?
    11·2 answers
  • The distance Jane jogs in 20 minutes is 8 miles. At this rate, how many miles will he run in 60 minutes?
    12·2 answers
  • Pls help meeeee :D show ur work
    9·2 answers
  • Find an equation of the horizontal line passing through the point (5, -2).
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!