Step by step explanation

Step By Step Explanation

Answers

Answer 1

Answer: x = 4 and y = -3

Step-by-step explanation:

2x + 4y = -4

2x = -4 - 4y

x = -2 - 2y

Now that we have solved the first equation for x, we plug (-2 - 2y) into the other equation in place of x and then solve for y.

3(-2 -2y) + 5y = -3

-6 - 6y + 5y = -3

-y = 3

y = -3

Now that we know y, we plug it into the original equation and solve for x.

2x + 4(-3) = -4

2x + -12 = -4

2x = 8

x = 4

You can check the answer by plugging both x and y into either of the original equations.


Related Questions

Mr. Johnson did a survey of his class to find out everyone's favorite food.
*10 students wanted hamburger
*6 students wanted pizza
*4 students wanted chicken strips

Based on these results if there are a total of 150 students surveyed how many of them would want chicken strips?

Answers

Answer:

75

Step-by-step explanation:

10+6+4= 20 sooo

150 divided by 20 = 7.5

7.5 = 75

MATH NATION
section 6 topic 3 QUESTION 2
HELP PLEASE
(PICTURE INCLUDED)
Complete the table of values for the function f(x) = –2? + 8x – 2
2
f(x)
-3
5
0
(-35/-32/-17)
(13/28/63)
(- 10/-2/2)
(2/10/18)
(5/40/103)
2
7
X=-3, f(x)=

Answers

Answer:

Step-by-step explanation:

x = -3, f(x) =  17

x = 5, f(x) = 63

x = 0, f(x) = -2

x = 2, f(x) = 18

x = 7, f(x) = 103

Heeeeelp pleaseeeee I will mark brainliest (if the answer is right)

Answers

Answer:

p = 6

Step-by-step explanation:

The slope equation is:

[tex]m = \frac{y \frac{}{2} - y \frac{}{1} }{x \frac{}{2} - x \frac{}{1} } [/tex]

then to know the value of "p":

[tex] - \frac{1}{3} = \frac{7 - p}{p - 9} \\ - 1(p - 9) = 3(7 - p) \\ - p + 9 = 21 - 3p \\ 3p - p = 21 - 9 \\ 2p = 12 \\ p = \frac{12}{2} \\ p = 6[/tex]

help me
Let a and b be non-zero integers.

Which of the following is NOT true?
A.
B.
C.
D.

Answers

Answer:

C

Step-by-step explanation:

It is the only answer where the negative signs do not even out on both sides of the equation.

Write an algebraic expression for s decreased by nine

Answers

Answer:s-9

Step-by-step explanation: Decreased means subtract . and you are subtracting s from 9.

Hope it helps



PLEASE CAN SOMEONE HELPPP

Answers

Answer:

second option

Step-by-step explanation:

The perimeter P is the sum of the 3 sides, then

P = 4x² + 3 + 2x - 5 + x + 11 ← collect like terms

= 4x² + 3x + 9

what is 2x - 3 = 5 because i am doing a test for school

Answers

Answer:

x=4

Step-by-step explanation:

Answer:

2x = 5 + 3

2x = 8

x = 8/2

x = 4

heunsjsnzjs

If possible draw a line of best fit on the graph.
Where possible estimate the value of p on the line of best fit
where s= 10.
3.
S
2
14
14
4
12
18
12
6
5
15
р
16
6
18
12
13
7

Answers

Answer:

format is wrone

i will answer then

Step-by-step explanation:

is this right? please help me

Answers

Answer: You are correct, the solution is:

-2 + (-4) + 2 = -4

Step-by-step explanation:

We start at position -2, then we get 4 in the first dice, the first dice tell us how many units we move to the left, and at the left we have the negative side of the numberline then we need to subtract 4 to the starting position. This is:

-2 - 4

Or we can rewrite this as:

-2 + (-4)

Now we got a 2 in the second dice, this dice tell us how many units we move to the right, and we know that the right is the positive side of the numberline, then we need to add 2.

The equation becomes:

-2 + (-4) + 2 = -4

So you are correct.

A rectangle has a length of (3x-1) and a width of (x - 2). What is equation to determine the area?
(Recall that area comes in the form of length time width)

Answers

Answer:

x-5

Step-by-step explanation:

-4 + -7 ?
HELLPP
Can somebody explain to me please

Answers

Answer:

−4−7

=−4+−7

=−11

Step-by-step explanation:

if its the same sign add, different signs keep the sing of the larger number

(4)
Please I need helppp

Answers

Answer:

E

Step-by-step explanation:

E is the correct answer

How fast can a Ford GT reach 100 Mph?​

Answers

Answer:

The new GT has a claimed top speed of 216 mph (348 km/h), and has a power to weight ratio of 0.43 hp (0.32 kW) per kilogram

Step-by-step explanation:

I looked it up:)

Answer:

top speed of 216 mph (348 km/h), and has a power to weight ratio of 0.43 hp (0.32 kW) per kilogram.

Step-by-step explanation:

What is the value of x in the solution to this system of equations ?
Y+2x=-1
Y=(1/2)x+4

Answers

Answer:

2×+y=-1

Do you think I'm right???

chose the correct answer and i am in 6 grade

determine the volume of a cube with side lengths of 4ft . use the expression S^ 3

A 12 cubes feet

B 27 cubes feet

C 16 cubes feet

D 64 cubes feet

Answers

Length x width x height 4x4x4 so 64

x + y = 3 2x + 2y = -4​

Answers

Answer:

(x,y)= (2/15, -(62/15)

Step-by-step explanation:

Answer:

Step-by-step explanation:

no solutions

2x+2y=-4 divide 2

x+y=-2

x+y=3

2. Which of the following is the solution of the system of equations shown? A. (−3, −4) B. (–3, 4) C. (3, 4) D. (3, –4)

Answers

Answer:

(3,-4)

Step-by-step explanation:

all you need to do is count to the side and count down from the axis's to the points. Its in the third quadrant so only the y axis would be negative

Hope this helps!

Brainliest would be much appreciated!

Last week, Clay wrote 4 checks for $20 each from his checking account and
made one deposit of $96. What was the change in the balance of his account
over the week?*

Answers

Answer:

Step-by-step explanation:

clay will have

-80+96=16 dollars

the change in balance is +16

Britney work 35 hours at a rate of pay of 9.55 how much did she earn before taxes ​

Answers

Answer:

3.66

Step-by-step explanation:

35÷9.55=3.66

Which equation represents a function that is NOT linear?
y= 4xsquared +1
y = -2x – 1
y-2-2
y= -5

Answers

I believe it would be y=4x^2+1 , it's in a U shape

:)

I step by step explanation

Answers

Answer:

The slope of line formed by given two points is undefined as the denominator becomes zero.

Step-by-step explanation:

Given points are:

(2,4) and (2,-2)

Here

[tex]x_1 = 2\\y_1 = 4\\x_2 = 2\\y_2= -2[/tex]

Slope is defined as the steepness of a line in the plane.

It is denoted by m and is given by the formula:

[tex]m = \frac{y_2-y_1}{x_2-x_1}\\[/tex]

Putting the values we get

[tex]m = \frac{-2-4}{2-2}\\m = \frac{-6}{0}\\m = \infty[/tex]

The slope of line formed by given two points is undefined as the denominator becomes zero.

please answer this 4 me , 50 points <3

Answers

The answers are - 5x+8y and 5(4)+2(8)=36
Explanation
To solve the equation, you would substitute x and y for 5 and 8.
-Ex: 5(4)+8(2)=36
The numbers in the parentheses get multiplied by the numbers on the outside. Making ‘5(4)’=20 and ‘8(2)’=16
So 5(4)+8(2)=36

Ratio Ralph can ride his bike 5 miles in 20 minutes. How many miles can he ride in
an hour and a half if he keeps this pace?

Answers

Answer:

22.5 miles

Step-by-step explanation:

There are 3, 20 minute increments in an hour, and 1 and a half 20 minute increments in half an hour, so, you simply add 3 + 1.5 which equals 4.5.

Then, multiply 5 (miles) by 4.5 to get 22.5 (miles).

Mr. Kershner is a school nurse. He uses, on average, 24 self-adhesive bandages during each spring month: March, April, and May. He also knows that in June there are several field days and he will need 4 times the number of bandages for that month. Part A How many bandages should he order for March through June?

Answers

Answer:

168

Step-by-step explanation:

24 times 3 is 72 then also 24 times 4 is 96 add that and get 168

Answer:

168

Step-by-step explanation:

The daily supply of oxygen for a particular multicellular organism is provided by 625 square feet of lawn. A total of 8750 square feet of lawn would provide the daily supplies of oxygen for how many organisms

Answers

Answer:

multicellular organisms  = 14

Step-by-step explanation:

given data

multicellular organism = 625 sq feet

total = 8750 sq feet

solution

we will gethere

as we know that 1 multicellular organism  =  625 sq feet  

so

we get here  multicellular organisms that is

multicellular organisms = ( 8750 ×1 ) ÷ 625

multicellular organisms  = 14

6. How much more is (6.48 x 10^5) than (3.2 x 10^2​

Answers

Answer:

647680

Step-by-step explanation:

Answer:

Step-by-step explanation:

6.48x10^5 / 3.2 x 10^2=2.025  x 10^3

i divide 6.48/3.2

10^5/10^2=10^3

PLEASEEEEEEEEE HELP


Translate the phrase into an algebraic expression.
The product of b and 9

Answers

Answer:

b(9) also known as: b multiplied by 9

I am not 100% sure but I do agree with the first person's answer so feel free to give them brainliest. Hope I helped though! Have a wonderful day! :)

The algebraic expression for the given phrase is 9b.

What is an expression?

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The given phrase is "The product of b and 9".

Now, the expression is b×9

= 9b

Therefore, the algebraic expression is 9b.

To learn more about an expression visit;

https://brainly.com/question/28170201.

#SPJ2

Car Survey In a survey of 1,300 people who owned a certain type of car, 910 said they would buy
that type of car again. What percent of the people surveyed were satisfied with the car?
% of the people surveyed were satisfied with the car.

Answers

Answer: let

Total number of those who took part in the survey (T) = 1300

Those were satisfied with the car(t)=910

Percentage of those who are satisfied (S)= (t/T)*100

S=(910/1300)*100

S=70%

Therefore 70% were satisfied

Step-by-step explanation:

Find the prime factorization for 100.
A. 2² x 52
B. 2 x 50
C. 4 x 25
D. 23 x 52
E. 22 x 53

Answers

Answer:

100

Step-by-step explanation:

So, the prime factors of 100 are written as 2 x 2 × 5 x 5 or 25*4

14 = 2y/5 what is the solution?

Answers

Answer:

y=35

Step-by-step explanation:

y in (-oo:+oo)

14 = (2*y)/5 // - (2*y)/5

14-((2*y)/5) = 0

(-2/5)*y+14 = 0

14-2/5*y = 0 // - 14

-2/5*y = -14 // : -2/5

y = -14/(-2/5)

y = 35

y = 35

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