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
valentinak56 [21]
2 years ago
8

Which variable will you choose to eliminate? How?

Mathematics
1 answer:
Inga [223]2 years ago
4 0

Answer:

  • Variable elimination
  1. 8x+3y=-7
  2. 3y=-8x-7
  3. y=-8/3x-7/3
  • Now plug it into y
  • 7x-16/3x-14/3=-3
  • 5/3x-14/3=-3
  • 5/3x=5/3
  • x=1
You might be interested in
Pls help me give u a brainlest
neonofarm [45]

Answer:

uhmm. lemme remember how to do that

4 0
3 years ago
Read 2 more answers
27 in exponetial notation ​
docker41 [41]

Answer:

3^3

Step-by-step explanation:

3x3x3=27

7 0
2 years ago
According to the Rational Root Theorem, which number is a potential root of f(x) = 9x
MAVERICK [17]

Answer:

The answer is below....V

Step-by-step explanation:

Brainliest when you can if you will!!!!

5 0
3 years ago
A store is having a sale where school supplies are 30% off their original price. A backpack is on sale for $11.20. What was the
Mrac [35]
To find the original price, you could use a variable to represent the original price in this equation;

Let p represent the original price

.70 × p=11.20

to solve this, we'd isolate the variable (p) 

p=11.20 ÷.70

p=16

The original price was $16
7 0
2 years ago
Bill's school is selling tickets to a spring musical. On the first day of ticket sales the school sold 5 adult tickets and 14 st
wariber [46]

Answer: The price of an adult ticket = $6

The price of a student ticket = $12

Step-by-step explanation:

Let the price of an adult ticket be a

Let the price of a student ticket be b.

From the question,

5a + 14b = 198 ...... equation i

10a + 8b = 156....... equation ii

Multiply equation i by 10

Multiply equation ii by 5

50a + 140b = 1980 ...... equation iii

50a + 40b = 780 ....... equation iv

Subtract iv from iii

100b = 1200

b = 1200/100

b = 12

Put the value of b into equation ii

10a + 8b = 156

10a + 8(12) = 156

10a + 96 = 156

10a = 156-96

10a = 60

a = 6

The price of an adult ticket = $6

The price of a student ticket = $12

8 0
2 years ago
Other questions:
  • Without solving, determine the number of solutions for this system. What does the graph of the system look like?
    14·2 answers
  • You have a friendship club. there are 12 members in your club. The 12th day of each month, you have a friendship call. Each memb
    12·1 answer
  • In the last basketball game, Elena scored 2 more than one fourth of her team's total points.
    7·1 answer
  • (7 2)6=7 what is the Exponent
    14·1 answer
  • If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3
    6·1 answer
  • How many parallel and perpendicular lines, are there in a trapezium?
    15·1 answer
  • A right triangle is removed from a rectangle to create the shaded region shown below. Find the area of the shaded region. Be sur
    13·1 answer
  • An observer at the top of a tower of height 20m sees a man due East of him at an angle of depression of 27°. He sees another man
    12·1 answer
  • What is the standard form for this equation <br><br> (x+2) (x+15)
    10·1 answer
  • A group of 328 people consists of men ,women, and children. There are five times as many men than children and twice as many wom
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!