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
r-ruslan [8.4K]
2 years ago
11

I need the answer as soon a possible

Mathematics
1 answer:
elena-s [515]2 years ago
8 0

Answer:

x = 0 \\ 7y = 28 \\ y = 28 \div 7 = 4 \\  \\  \\ y = 0 \\  - 4x = 28 \\ x = 28 \div ( - 4) =  - 7

You might be interested in
You and three friends go out to dinner. The cost of the dinner was $112.80. You leave an 18% tip. How much is your tip?
34kurt

Answer:

Bill

112.80

Tip %

15%

Number of people

4

Tip

per person

$4.23

Total

per person

$32.43

Step-by-step explanation:

4 0
2 years ago
Four times a number added to 3 times a larger number is 31. Seven subtracted from the larger number is equal to twice the smalle
aev [14]
Let the smaller number be x.
Let the bigger number be y.

\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y- 7 = 2x \tex{ ----- (2) } \end{cases}

Rearrange equation (2):
\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y = 2x + 7 \tex{ ----- (2) } \end{cases}



Sub (2) into (1):

4x + 3(2x + 7 ) = 31
4x + 6x + 21 = 31
10x + 21 = 31
10x = 10
x = 1

Sub x = 1 into (2):

y = 2x + 7
y = 2(1) + 7
y= 9

Answer: The two numbers are 1 and 9.

5 0
2 years ago
Read 2 more answers
Please help!!! I need it fast! PLEASE!!!
Dovator [93]

Answer:

The points you need to graph are (-4,0) (-1,9) (2,0)

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
Thethree sides of a triangle measure 810 and 12 units is this a right angle?
Alja [10]

Answer:

The given triangle is NOT A RIGHT ANGLED TRIANGLE.

Step-by-step explanation:

Here, the three given sides of the triangle are:

8 units, 10 units and 12 units

Now, for any triangle to be a right angle:

by the PYTHAGORAS THEOREM:

(Base)^2 + (Perpendicular)^2  = (Hypotenuse)^2

The longest of all sides id the hypotenuse.

⇒ H  = 12 units

Let us assume, B = 8 units, P = 10 units

Now, here checking the condition:

(8)^2  + (10)^2  = 64  + 100  = 164  \neq (12)^2  = 144\\\implies (B)^2  + (P)^2  \neq (H)^2

Hence, the given triangle is NOT A RIGHT ANGLED TRIANGLE.

4 0
3 years ago
Suppose you invest $2000 at a rate of 3.25% continuously, determine the worth of the investment after 10 years.
AysviL [449]

Answer:

$2650

Step-by-step explanation:

= 2000 × 0.0325 × 10 = 650

= $ 650.00

8 0
2 years ago
Other questions:
  • Julia is allowed to watch no more than 5 hours of television a week. So far this week, she has watched 1.5 hours. Write and solv
    9·1 answer
  • A certain species of tree grows an average of 4.2 cm per week. write an equation for the sequence that represents the weekly hei
    12·1 answer
  • Suppose that f(x)=x^2 and g(x)=-1/4(x+7)^2. Which statement best compares the graph of g(x) with the graph of f(x)?
    15·1 answer
  • How to solve <br>(5-8i)+(1+6i)
    8·2 answers
  • How do you solve this limit of a function math problem? ​
    13·1 answer
  • John has a part-time job he is praise £6.80 per hour what is his total pay for this week
    6·1 answer
  • Solve the following inequality algebraically
    8·1 answer
  • I’m so confused please help I can’t afford another bad grade
    11·1 answer
  • Help please???!!!!?!!!!??!!?!!!!!!!!
    10·1 answer
  • A driver driving a business trip of 240 miles would have reached his destination if he'd been able to drive 12 mph faster than h
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!