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
konstantin123 [22]
2 years ago
10

Given the system of equation 7x-3y = 48 .......Eq 1 2x+ y = 35 ........Eq 2 __________ To solve this system by elimination and m

ultiplication , i can ...............................
Mathematics
1 answer:
lesya692 [45]2 years ago
7 0

Answer:

x = 11.75

y = 11.5

Step-by-step explanation:

By Elimination Method:

   7x - 3y = 48    ---- (1)

-

<u>    2x + y = 35   ----</u>-   (2)

Multiply equation (1) by 2 and equation (2) by 7

   14x - 6y = 96

-

<u>    14x + 7y = 245      </u>

<u>      0   -13y = -149</u>

-13y = -149

y = -149/-13

y = 11.5

From equation (2); replace y with 12

2x + y = 35

2x + 11.5 = 35

2x = 35 - 11.5

2x = 23.5

x = 11.75

You might be interested in
Each of 6 samples has a different standard deviation. How many of the 6 samples could be from the same population?
pav-90 [236]
I would think 32 so yea....because (12/98=49<33>**+{45-63-12{45+58-28} =32
3 0
3 years ago
Read 2 more answers
M=1/2 and the y-intercept is (0, -5)
Black_prince [1.1K]

Answer: plug in y=mx + b

Step-by-step explanation:

7 0
2 years ago
A display order of numbers are called​
Sergeu [11.5K]

Answer:

I think

A display order of numbers are called​ <u>sequences</u>.

7 0
2 years ago
Read 2 more answers
how many minutes is it before 12 noon if 20 minutes ago it was three times as many minutes after 9 am
Hunter-Best [27]
First, change everything into minutes.
12 noon is 12 by 60 which = 720 minutes.
9am is 9 by 12 which = 540 minutes.
X is now your number of minutes before noon.So noon - x is the next step:
720 - x
20 minutes ago it was 720 - x - 20
720 - x - 20= 540 + 3x (3x because you're looking for 3 times as many minutes)
720 - 20 - 540=4x (you combine all the like numbers and variables) 
160 = 4x
160/4= x
40 = x
Your answer is 40 minutes
<span>
</span>
7 0
3 years ago
Simplify <br>99=2(-7b-3)+7​
Arisa [49]

Answer:

b=-7

Step-by-step explanation:

Simplifying

99 = 2(-7b + -3) + 7

Reorder the terms:

99 = 2(-3 + -7b) + 7

99 = (-3 * 2 + -7b * 2) + 7

99 = (-6 + -14b) + 7

Reorder the terms:

99 = -6 + 7 + -14b

Combine like terms: -6 + 7 = 1

99 = 1 + -14b

Solving

99 = 1 + -14b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '14b' to each side of the equation.

99 + 14b = 1 + -14b + 14b

Combine like terms: -14b + 14b = 0

99 + 14b = 1 + 0

99 + 14b = 1

Add '-99' to each side of the equation.

99 + -99 + 14b = 1 + -99

Combine like terms: 99 + -99 = 0

0 + 14b = 1 + -99

14b = 1 + -99

Combine like terms: 1 + -99 = -98

14b = -98

Divide each side by '14'.

b = -7

Simplifying

b = -7

5 0
3 years ago
Read 2 more answers
Other questions:
  • A particular number was divided by 6 qnd then 5 was taken away from the quotient. Finally, the difference was mutiplird by 2. Gi
    11·1 answer
  • What is7 times 500 using compatible numbers
    6·1 answer
  • Molly's Milk Company wants to repaint the barrels in which the milk is stored. The workers need to know how much area they will
    10·1 answer
  • What is the answer to this?
    10·2 answers
  • mike made 5 fewer than three times the number of bracelets that sheri made. Write an expression to represent the number of brack
    5·1 answer
  • I needddd helppp please
    6·1 answer
  • According to the table below, what is the probability that a student chosen at random will be 16 or older?
    6·2 answers
  • In a group of 33 pupils, 1 plays the flute only.
    10·1 answer
  • a rectangular mural measures 3.5ft by 5.5ft. Rosalie creates a new mural that is 1.5 ft longer. What is the perimeter of Rosalie
    12·1 answer
  • PLS HELP ME ASAP!! TEN POINTS!!! Select each correct answer.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!