Mathematics High School

A variable needs to be eliminated to solve the system of equations below. Choose the
correct first step.
- 4x – 2y = 18
4x – 4y = -36
O Subtract to eliminate x.
O Subtract to eliminate y.
O Add to eliminate x.
O Add to eliminate y.

Answers

Answer 1

Step-by-step explanation:

-4x - 2y = 18

+ (4x - 4y = -36)

=> -6y = -18, y = 3

As we added the equations together, we have eliminated x and found y.

Hence the correct answer is "Add to eliminate x".

Related Questions

Plsss help me and I’ll give brainliest

Answers

Answer:

Bonnie is correct

Step-by-step explanation:

Ok so bonnie said to buy five shirts  so 5 x 12 = 60 but minus the $10 because the 10 dollar dicount now if you do 60 - 10 = 50 so you can buy five shirts.

Answer:

Susan is correct

Step-by-step explanation:

Choose the odd one out & give a reason for your answer. 2/6. 4/10. 6/18. 8/24

Answers

Answer:

odd one out is 4/10

Step-by-step explanation:

it is so because when u simply others u get 1/3 as final answer and this u get 2/5

What is the value of x in the solution of the system x+y=3
y=-6x+3

Answers

The answer is 9 your welcome nice day
the answer is 9 I hope I helped !!

What is the inverse of the function f(x) = 2x-10?

Answers

Answer:

One sec

Step-by-step explanation:


1. For the function f(x) = 3x + 1, find f(-2). (substitute -2 in for x)


Answers

Answer:

f(-2) = -5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3x + 1

f(-2) is x = -2

Step 2: Evaluate

Substitute in x:                    f(-2) = 3(-2) + 1Multiply:                               f(-2) = -6 + 1Add:                                     f(-2) = -5

A store has a video game rewards program. The fee to join the program is $10 plus $3 per week. Which equation can be used to find y, the total cost that Mark will spend to join the rewards program after x weeks?
a
y = 10x + 3
b
y = 3x + 10
c
y = 3x +12
d
y = 12x + 10

Answers

I am pretty sure the Anwser is C

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

108 is 36% of what number? Write and solve a proportion to solve the problem.

Answers

Answer: 300

Step-by-step explanation:

Let the number be represented by x.

Therefore, based on the information given in the question, this can be expressed as:

36% of x = 108

36/100 × x = 108

0.36 × x = 108

0.36x = 108

x = 108/0.36

x = 300

Therefore, the number is 300

A scuba diver is swimming 15 feet below the water’s surface.
The diver swims up slowly at 0.5 feet per second for 4 seconds; and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth?

Answers

Answer: -11.8  =  11.8 feet below the water's surface

Step-by-step explanation:

-15 + (0.5)(4) + 3(0.4)

-15 + 2 + 1.2

-11.8

please help me........... what is the answer.

Answers

so first we need to substitute 3 into the expression
3^2 + 3 / 3 - 1
9 + 3 / 2
12 / 2 = 6
hope this helps! :)
Answer: 6
If x=3 we first need to find the value of all the x’s is this equation starting with x to the power of two
3•3=9
now we add 3 to nine since it is directly next to it
3+9=12
for the divisor we have x-1
(3)-1=2
so now that we have all the values we simply divide
12/2=6

help me l,ll give you brainest

Answers

Answer:

Step-by-step explanation:

he did the question wrong completely, so, check #4, #2, and #3

Answer:

the last three choices

What is the value of the expression: (-3) (- 1) (-2)= __________



A. – 8 B. – 17 C. 17 D. 8

Answers

Answer:

Use BODMAS and multiply the signs - ve × -ve equals +ve multiplied by another - ve is a - ve sign then multiply the figures and then multiply the final figure to the final - ve sign.

Thank you. Hope I was of help.

What composition of rigid motions maps APOR LO AXZY?
A T<1,3> (270, 0)
B. Rx=0.T<0,2>
C. Tx6,2>. Rx = -2
D. Ry=-2.T-6,0>

Answers

Answer:

Looking for an answer for this one

Step-by-step explanation:

What happens to the graph of f(x) when it is multiplied
by a negative number less than -1?

Answers

Answer: Your going to multiply what ever it is but it needs to have a “-“ before it as a negative .

what is the rate of change of y to x for 25x-5y=50

Answers

Answer:0

Step-by-step explanation:

Because it says rate of change witch don’t have one

find the slope of the line y=-1/4x+9

Answers

Answer:

slope = - [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

The equation of a line in slope0 intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - [tex]\frac{1}{4}[/tex] x + 9 ← is in slope- intercept form

with slope m = - [tex]\frac{1}{4}[/tex]

Work out m and c for the line:2y−4x=2

Answers

Step-by-step explanation:

General equation : y = mx + c

2y - 4x = 2

2y = 4x + 2

y = 2x + 1

Therefore m = 2 and c = 1.

What is the measure of ABC?

Answers

I think it’s 59 or choice one but to be fair algebra wasn’t my best subject

Which expression is equivalent to (q^4)^-3/q^-15 for all values of q where the expression is defined?

Answers

Answer: (h)q^3

Step-by-step explanation:


[tex]3z - 2 = 4 \\ z = [/tex]
what does z equal​

Answers

The answer that I found was z=2

The temperature at 10 A.M. was -4 °F. By noon the temperature had risen 8 °F. At 8 P.M., the temperature had dropped 10° F. What was the temperature at 8 P.M.? *

Answers

Answer:

-6

Step-by-step explanation:

-4+8=4

4-10= -6

what is the common factors of 5 and 6


Please do not google it

Answers

9514 1404 393

Answer:

  1

Step-by-step explanation:

The only integer factor common to 5 and 6 is 1.

__

This will be true for any pair of natural numbers that differ by 1.

Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go towards paints. Each tube of paint costs $8.50. Assume that x represents the number of tubes of paint Catherine can buy. This is the inequality I need to figure out pls help​

Answers

Answer:

can you take a screen shot its hard to see

Step-by-step explanation:

If I had an iPhone 6 that was 12 by 9 inches and an iPhone X that was 17 by 8 inches, how many feet would they be? If you want a challenge divided by 2 at the end.

Answers

Answer:

$13.41

Step-by-step explanation:

maybe, I'm not that sure :/

btw you can, can you please mark me brainliest :)

What is the cube root of 27x^18?
A)3x^6
B)3x^9
C)9x^6
D)9x^9


Answers

it’s most likely a :)

Answer:

It’s B

Step-by-step explanation:

just answered question

Which expression is simplified in exponential form?

Answers

Step-by-step explanation:

theirs no expressions????

HELP PLEASE AND THANK YOU

Answers

Answer:

C.) -3/2

Step-by-step explanation:

To find the slope you need to use the formula: m = y2 - y1/x2 - x1

Point: (-2,1) and (2,-5)

m = y2 - y1/x2 - x1

m = -5 - 1/2 - (-2)

m = -6/2 + 2

m = -6/4

m = -3/2

Add the two expressions.
-6.56 + 11 and 3.36 - 2

Answers

Answer: 4.1

Step-by-step explanation:

Hope it helped! Brainliest??

What is the ordered pair for point B?

Answers

Answer:

(4,2)

Step-by-step explanation:

..................................

You buy five books that are equal in
price and a DVD for $8. Your total
comes to $26.50. Write an equation
that would help you determine the cost
of one book.
( Hint it’s not 3.70!)
Please help!

Answers

If it’s not $3.70, maybe it’s looking for the equation instead like b = (26.50 - 8)/5?

Mr Sanchez brought in 2 magazines for 9.95

Answers

Answer:

good for Mr. Sanchezbut thats a bit expensive ya know?????/

Step-by-step explanation:

Is there anymore info??
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