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
harkovskaia [24]
2 years ago
11

Decide whether it would be more convenient to solve the system of equations by substitution or elimination.

Mathematics
1 answer:
mixer [17]2 years ago
4 0

Answer:

I would use elimination in this scenario. Because in both equations there is a coefficient on both variables, it would be difficult to isolate one variable and would leave the equation as a fraction. Instead, use elimination. Multiply the first equation by -15, which changes it to 10x + 225y = -90, and then subtract the second equation, thus cancelling out the 10x's and letting you solve for Y. Hope this helps!

You might be interested in
The bells obtain a 20-year, $90,000 conventional mortgage at a 8.5% rate on a house selling for $130,000. their monthly mortgage
shtirl [24]
I think the answer is B
3 0
2 years ago
Create an equation
Gala2k [10]

answer:

54 students

since 7 students left,

331 - 7 = 324

324 / 6 = 54 students

4 0
3 years ago
Is 1.3 million bigger than 65 million
gtnhenbr [62]

Answer:

no

Step-by-step explanation:

because 1.3m is small

and 65M is very big I need 65m

8 0
2 years ago
The store had a special on apples, 4 pounds for $2.80. The store's special on oranges was 3 pounds for $2.58. Which of the follo
Viktor [21]

Answer:

B

Step-by-step explanation:

Hope this helps!!

8 0
2 years ago
Read 2 more answers
Use the quadratic formula to solve the equation. -2x^2-x+7=0.
Furkat [3]
<span>-2x^2-x+7=0  
Variable with the highest degree's (exponent) constant, -2 is a, next variable's constant, -1 is b, the constant or number without a variable, 7 is c

using substitution put the numbers into the formula
</span>(-b±√(b^(2)-4ac))/(a^(2))

(-(-1)±√((-1)^(2)-4(-2)(7))/((-2)^(2)) simplify 

(1±√(1+56))/4

1±√(57)/4 is your answer
8 0
3 years ago
Other questions:
  • How many of the first 1000 positive integers are multiples of both 4 and 5 but not 6 ? Although the options are
    5·1 answer
  • If the price of an object dropped 35% down to $75.68, what was the original price?
    15·2 answers
  • Absolute value of 100​
    9·1 answer
  • What is the absolute value off -37
    12·2 answers
  • the dimensions shown are an approximation using these dimensions which is the approximate area of abc
    11·1 answer
  • The slope of a line models the what of a function
    14·1 answer
  • jill sold half her comic books then bought 16 more she now has 36 how many did she start with? help me plz ...?
    12·2 answers
  • Select one of the triangle theorems and write a proof for it.
    8·2 answers
  • What is the end behavior of h (x) = StartFraction negative 5 x Superscript 4 Baseline + 13 x Over x cubed EndFraction As x appro
    7·2 answers
  • What is the product? <br> 6 x [4 -2 1 <br> 7 3 0]
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!