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
Vsevolod [243]
3 years ago
10

Solve the system of equations. (HINT: use the elimination method) 7x+4y=2 9x-4y=30

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
4 0

Answer: 7x + 4 y = 2

9x - 4y= 30

-------------------

16x / = 32

x= 32:16

x=2

Step-by-step explanation: 7x+4y=2

7*2 + 4y=2

14 +4y=2

4y= 2-14

4y= -12

y= -12 : 4

y= - 3

You might be interested in
Derive the equation of the parabola with a focus at (−5, 5) and a directrix of y = −1. (2 points)
love history [14]
The focus is above the directrix, so the parabola opens upward—its vertical scale factor is positive (+1/12). The line of symmetry is x=-5, so the vertex form of the equation will have the factor (x -(-5))² = (x+5)². The choice that meets both these requirements is
  D. f(x) = (1/12)(x + 5)² + 2

3 0
3 years ago
A grocery store orders 47 bags of onins and 162 bags of potatoes. The onions cost 2 per bag , and potatoes cost 3 per bag How mu
Alina [70]

Answer:

580 is spent on onions and potatoes

Step-by-step explanation:

The grocery store ordered 47 bags of onions, and 1 bag costs 2.

It also ordered 167 bags of potatoes, and the bag costs 3.

47 bags onions X 2 render 94

162 bags potatoes X 3 render 486

94 (cost of onions) + 486 (cost of potatoes) = 580

7 0
3 years ago
Solve for the following proportion for v.
ludmilkaskok [199]

Answer:

20/ 11 and if u want it in decimal it's 1.818182

6 0
3 years ago
Read 2 more answers
Write the quadratic equation whose roots are −6 and 2 , and whose leading coefficient is 5 . (use the letter x to represent the
White raven [17]
<span>Here let the quadratic equation be ax^2 + bx + c We know that a=5 from the question. Since the roots are 6 and 2, the quadratic equation would take the form of a product like (a1x-b1)(a2x-b2). However, let's assume that a2=1 and b2=6, Since a=5, a1=5, then 5x-b1=5(x-2). Solving this shows that b1=10 So, the equation is (5x-10)(x-6)</span>
3 0
3 years ago
1. Solve for w in the equation W/5 = 25<br> A.W = 5<br> B.W = 125<br> C. W = 30<br> D.W = 20
vekshin1

Answer: <em>w = 125</em>

Explanation: Since <em>w</em> is being divided by 5, to solve for <em>w</em>,

multiply both sides of the equation by 5.

On the left side, the 5's will cancel

and on the right side, 25(5) is 125.

So <em>w = 125</em>.

<u />

<u>Please do not do this problem in your head.</u>

Show the work that it takes to get <em>w</em> by itself.

3 0
3 years ago
Other questions:
  • a countrys population in 1995 was 162 million. in 1999 it was 167 million. Estimate the population in 2004 using the exponention
    13·2 answers
  • Which ordered pair is a solution to the system of equations 4x-y=10 y=2x-2
    6·1 answer
  • Help on evaluating expressions
    9·1 answer
  • What's the table function below
    10·1 answer
  • What is a simplest way to find out x
    13·2 answers
  • PLSSSSSSSS HEEELLLLPPPPP
    14·1 answer
  • Find the slope of the line through each pair of points <br><br><br><br><br>(-20,-4), (-12,-10)​
    14·2 answers
  • Destini has $64 to spend on a new game. If she spends 5/8 of her money on the
    15·2 answers
  • Helpppppppppppppppppppppppppppppppp[ppppppppp
    15·1 answer
  • Troy and Lisa were shopping for school supplies. Troy bought 3 notebooks and 5 thumb drives for $20.25. Lisa bought 8 notebooks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!