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
saveliy_v [14]
2 years ago
15

Use elimination to solve each system of equations 3x + 5y = -2 3x - 2y = - 16

Mathematics
1 answer:
Luden [163]2 years ago
3 0
Y= -6 because we eliminated 3x, subtracted 5-2 and -2-16. that gave us 3y=-18. divide by 3 on both sides.
You might be interested in
Can someone solve this for me?
Helga [31]

well, we know it's a rectangle, so that means the sides JK = IL and JI = KL, so

\stackrel{JK}{3x+21}~~ = ~~\stackrel{IL}{6y}\implies 3(x+7)=6y\implies x+7=\cfrac{6y}{3} \\\\\\ x+7=2y\implies \boxed{x=2y-7} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{JI}{6y-6}~~ = ~~\stackrel{KL}{2x+20}\implies 6(y-1)=2(x+10)\implies \cfrac{6(y-1)}{2}=x+10 \\\\\\ 3(y-1)=x+10\implies 3y-3=x+10\implies \stackrel{\textit{substituting from the 1st equation}}{3y-3=(2y-7)+10} \\\\\\ 3y-3=2y+3\implies y-3=3\implies \blacksquare~~ y=6 ~~\blacksquare ~\hfill \blacksquare~~ \stackrel{2(6)~~ - ~~7}{x=5} ~~\blacksquare

5 0
1 year ago
When a figure is​ rotated, does every point move the same​ distance? Explain. *
fenix001 [56]

Answer:

Yes. Since the angle of rotation is the​ same, the distance that each point moves is the same.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Noah earned w dollars over the summer. Mai earned x dollars, which is y dollars more than
Wewaii [24]

Answer:

Equation: x-w=y

Step-by-step explanation:

:)

4 0
3 years ago
Priya is hosting a poetry club meeting this week and plans to have fruit punch and cheese for the meeting. She is preparing 8 ou
Korvikt [17]

Answer:

i) Number of people in club = 12

ii) 96 ounces of fruit punch for 12people

iii) 24 ounces of cheese for 12 people

iv) Priya's budget for poetry club meeting in dollars = $7.87

Step-by-step explanation:

We are not given the options for the equations that could represent the quantities and constraints in this situation. We can tell we are to represent the information given above.

Number of people in the club = 12

8 ounces of fruit punch per person

For 12 people = 12×8 = 96 ounces of fruit punch

2 ounces of cheese per person

For 12 people = 12×2 = 24 ounces of cheese

A package of cheese = 16 ounces

The costs for 1package = $3.99

The costs for 16 ounces of cheese = $3.99

The cost for 24 ounces of cheese = (24×3.99)/16 = 5.985

The cost for 24 ounces of cheese = $5.99

One-gallon jug of fruit punch = 128 ounces

The cost of One-gallon jug of fruit punch = $2.50

The costs of 128 ounces of fruit punch = $2.50

The costs for 96 ounces of fruit punch = (96×2.5)/128 = 1.875

The costs for 96 ounces of fruit punch = $1.88

Priya's budget for poetry club meeting in dollars = $5.99 + $1.88 = $7.87

Cost per item for x number of people:

y = x(2.5/128) + x (3.99/16)

y = x(0.0195) + x(0.2494)

Cost equation for Priya's budget:

y = 96x(2.5/128) + 24x (3.99/16)

y = 96x(0.0195) + 24x(0.2494)

Since the total number of people to attend the meeting is 12, the constraint = 0≤x≤12

6 0
3 years ago
How many 4-digit numbers can be made from the digits 2, 3, 4, 5, 6, 7 if no digit is repeated in the same number?
jonny [76]
THis equals the number of permutations of 4 from  6.

= 6P4  =  6! /  (6 - 4)!   = 6! / 2!  =  720/2  = 360 answer
8 0
3 years ago
Other questions:
  • Marcus is 1.5 meters tall. His sister is 0.1 meter taller than Marcus. Their father is 0.2 meter taller than his sister. How tal
    8·1 answer
  • 10 people can paint a building in 5 days. If 7 people are working at the same pace how much of the building could 7 people paint
    8·1 answer
  • Evaluate the function f or f(-9) if f(x) = 3/5x +8<br><br>Help please​
    6·2 answers
  • Alex needs to buy compressed air to fill empty cylindrical tanks for his tire store. Each tank is 12 feet deep and has a radius
    6·1 answer
  • Solve for<br> a. 7a-2b = 5a b
    13·2 answers
  • CAN SOMEONE HELP WITH THE QUESTION IN THE IMAGE.
    12·1 answer
  • Select the correct answer. Rewrite the expression x^3+10x^2+13x+39/x^2+2x+1 in the form q(x)+r(x)/b(x).
    13·1 answer
  • Andrew plays on a basketball team. In two games he scored 2/5 of the total number of points his team scored. His team scored 55
    15·2 answers
  • While unpacking a box of canned vegetables, you notice that 3 out of 30 cans are dented. Select all the ways you can write “3 ou
    5·1 answer
  • What is the surface area of this right rectangular prism?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!