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
posledela
3 years ago
15

5x - 4y = 19 x + 2y = 8

Mathematics
1 answer:
klemol [59]3 years ago
7 0

Answer:

(5x-4y)=19

5×19-4×19

95-76

19

Step-by-step explanation:

x+2y=8

x=8-2

x=6

You might be interested in
Need help with this question!
Katyanochek1 [597]

Answer:

  • A = 0.85(b +47)
  • $143.65

Step-by-step explanation:

Since the number of bagels sold already is 47, the total number of bagels sold will be b+47. The revenue from each sale is $0.85, so the total revenue will be ...

  A = 0.85·(b +47)

This equation can be written in different forms, but this satisfies the requirement for "an equation."

__

Since b is the number of addition bagels, when 122 additional bagels are sold, the value of b is 122. Then the equation becomes ...

  A = 0.85·(122 +47)

  A = 0.85·169 = 143.65

Revenue will be $143.65 when 122 additional bagels are sold.

4 0
3 years ago
Od<br> 2<br> (<br> 2 7 1-3<br> 1 3 1-2<br> 6:1-6<br> b =<br> d =<br> IDONE
Lena [83]

Answer:

a = \boxed{1},\: b=\boxed{0}\\\\c=\boxed{0},\: d=\boxed{1}

Step-by-step explanation:

  • \begin{bmatrix} 2 & 7\\\\1 & 3\end{bmatrix}\:\begin{bmatrix} -3 & 7\\\\1 & -2\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • Multiply both the matrices on left side, we find:

  • \begin{bmatrix} 2(-3)+7(1) & 2(7)+7(-2)\\\\1(-3)+3(1) & 1(7)+3(-2)\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • \rightarrow\begin{bmatrix} -6+7 & 14-14\\\\-3+3 & 7-6\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • \rightarrow\begin{bmatrix} 1 & 0\\\\0 & 1\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • Comparing the corresponding elements of both the matrices on both sides, we find:

  • a = \boxed{1},\: b=\boxed{0},\:c=\boxed{0},\: d=\boxed{1}
7 0
2 years ago
What single transformation maps triangle ABC onto A’B’C?
Soloha48 [4]
The answer is a rotation, hope it helped :)
6 0
3 years ago
Read 2 more answers
A bag contains 2 red marbles, 7 blue marbles and 8 green marbles. If two marbles are drawn out of the bag, what is the exact pro
dem82 [27]
The overall probability it 7/17
5 0
2 years ago
Which terms describe this shape? Choose all that apply.
Simora [160]
The answer is a square.
All four sides are congruent.
7 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify √24a^6b^5 everything is under the spuare root. And theres a little 3 above the beggining of the sqaure root sign.
    7·1 answer
  • How many cubic meters of water did the hull of the Titanic have to displace to stay afloat?
    14·2 answers
  • The length of the rectangle is 5 inches more than the width. The perimeter of the rectangle is 42 inches. Write an equation to m
    15·1 answer
  • Mike recorded the temperatures 0°, 28°, −10°, 15°, and −19°. Which set shows the temperatures, in degrees Fahrenheit, in order f
    12·1 answer
  • How do you solve the equation z-2z-3=-7
    12·1 answer
  • Please solve and show work
    8·2 answers
  • Find ten rational numbers between -2/3 and 2/3
    7·1 answer
  • A pair of dice is rolled. What is the probability of getting a sum of 2?
    10·2 answers
  • If you ask the first 50 females who enter a restaurant to complete a survey about their experience, who is the sample?
    11·2 answers
  • The _____ of two sets X and Y is denoted by X-Y​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!