What is the solution of this system of equation

3x + 7y = 15

5x + 2y = -4


Please help.

Answers

Answer 1

Answer:

Make it 3x+7y=15...equation 1

Anr, 5x+2y=-4...equation 2

Now use elimination or substitution method to solve


Related Questions

Which point would not be a solution to the system of linear inequalities shown below ?

Answers

3,3 and 12,8 ( this is a guess )

If 12 boxes stacked is 16 feet high, how tall is a stack of 16 boxes

Answers

Answer:20 feet

Step-by-step explanation:16 -12=4 and then take 16 divided by 4 which is 4 so u add 4 to 16 so the boxes will be 20 feet high

What’s the slope?? Please help

Answers

Answer:

m = 30

Step-by-step explanation:

To find the slope, you can use the formula [tex]y_{2}-y_{1}\\x_{2}-x_{1}[/tex] (there should be a line between the y's and the x's to show division). Because in the numerator of the formula we have y2 - y1, we insert the second value of y and the first value of y, so it'll be 150 - 60 and we get 90. We do the same for the denominator, which will be 5 - 2 and we get 3. After this, we divide the top by the bottom, so we have 90/3 = 30.

which one is a proportional relationship

y=2x+5
y=18x
y=10x-7
y= 5+2x

Answers

Answer:

B

Step-by-step explanation:

y=18x always stays constant. 2y=36x, ect

Some people advise that in very cold​ weather, you should keep the gas tank in your car more than half full. Irene​'s car had 5.5 gallons in the 14​-gallon tank on the coldest day of the year. Irene filled the tank with gas that cost ​$3.60 per gallon. How much did Irene spend on​ gas?

Answers

oop that’s my middle name

To solve -3x2 + 12x - 14 = 0 by graphing, you need to find the information to graph the parabola. Answer the following questions: The parabola opens upward or downward. The vertex is ( , ). The axis of symmetry is . The y-intercept is . The solution is x = .

help....

Answers

Answer:

Step-by-step explanation:

-the parabola opens downward because a=-3 is negative

-the vertex is at (0, -2)

-axis of symetry is the y-axis so is x=0

-the y-intercept is at (0,-2)

-has imaginary solutions you can find using quadratic formula

If you go to desmos.com, click on graphic calculator and add threre your equation you cand check your answers

A medium-sized shipping box with side length s
units has volume of s^3 cubic units.
a. A large shipping box has side lengths that are 3
units longer than the medium box. Write a
binomial expression for the volume of the large box.
b. Expand the polynomial in part a to simplify the
volume of the large shipping box.
c. A small shipping box has side lengths that are 2
units shorter than the medium box. Write a
binomial expression for the volume of the small
shipping box.

Answers

Answer:

See below

Step-by-step explanation:

Medium- sized box:

Side = s, Volume = s^3

a) Large -sided box

Side = s + 3Volume = (s + 3)^3

b)

(s + 3)^3 = s^3 + 9s^2 + 27s + 27

c) Small-sized box

Side = s - 2Volume = (s - 2)^3 =s^3 - 6s^2 + 12s - 8

On a number line, 1.43 would be located.choose all answers a true statement
A.to the right of 1.45
B. to the left of 1.41
C. between 1 and 2
D. between 1.42 and 1.44

Answers

Answer:

C and D

Step-by-step explanation:

Miguel wants to bike a total of 100 miles over the course of one week in the summer. He logs how much he bikes each day in the table below.

Miguel’s Biking Log
Day
Miles Completed
Monday
16.3
Tuesday
14 and one-half
Wednesday
18.75
Thursday
12 and one-fourth
Friday
22 and three-fifths

How many total miles does Miguel need to ride on Saturday and Sunday to meet his goal?
15 and three-fifths miles
45 and one-fifth miles
62 and one-half miles
84 and two-fifths miles

Answers

Answer:15 and three-fifths

Step-by-step explanation:

Answer:

15 and three-fifths

Step-by-step explanation:

URGENT!
How are the steps of adding rational expressions similar to solving rational equations? How are they different?

Answers

Answer:

Step-by-step explanation:

just loook it up

State the range of the function.

A. -2 ≤ y ≤ 2
B. y ≤ 2
C. -4 ≤ y ≤ 4
D. {-2,-1,0,1,2}

Answers

I’m pretty sure the answer would be c.

Ps. Sorry if I’m wrong. :)

Write the equation in slope-intercept form to y−5=3(x−1)

Answers

Answer:

y=3x+8

Step-by-step explanation:

the slope intercept form is y =mx+b where m is the slope and b is the y interce0tn

Solve the equation for all real solutions.
402 + 4v – 3 = 0

Answers

Answer:

v = -99.75

Step-by-step explanation:

Solve like a normal equation

402+4v-3=0

402+4v-3+3=0+3

402+4v-402=3-402

4v/4 = -399/4

v = -99.75

There are 80 dogs and cats in the animal shelter. The ratio of dogs to cats is
5
How many of the animals are dogs?
11
A.) 30
B.)25
C.)15
D.) 36

Answers

Answer:

36 I think

Step-by-step explanation:

The number of dogs is 25

The number of cats is 55.

What is a ratio?

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

We have,

Total number of dogs and cats = 80

The ratio of dogs to cats is 5:11.

Consider the number of dogs and cats to be 5x and 11x.

We can write,

5x + 11x = 80

16x = 80

Divide both sides by 16.

x = 80 / 16

x = 5

Now,

We will substitute x = 5 to find the following:

The number of dogs:

= 5x

= 5 x 5

= 25

The number of cats:

= 11x

= 11 x 5

= 55

Thus,

The number of dogs is 25

The number of cats is 55.

Learn more about ratios here:

https://brainly.com/question/2462048

#SPJ2

A bicycle has a listed price of $849.955 before tax. If the sales tax rate is 6.5%, find the total cost of the bicycle with sales tax included. Round your answer to the nearest cent, as necessary.

Answers

Answer:

$905.21

Step-by-step explanation:

.065 x 849.955 = 55.25

849.955 + 55.25 = 905.205

The boundary line on the graph represents the equation
5x+2y=6
Write an inequality that is represented by the graph.

Answers

Answer:

x=2(3-y)/5

Step-by-step explanation:

5x=6-2y

x=6-2y/5

Solve for f(-3).
f(x) = 5 - X
f(-3) = [?]

Answers

Answer:

The answer is 8

Step-by-step explanation:

f(-3) = 5 - (-3)

The two negatives cancel out

f(-3) = 5 + 3

f(-3) = 8

HAVING THE WORST DAY EVER PLEASEEEEEEEEEEEEEE HELP FREE 50 POINTS IF CORRECT
Jack is 2 years older than Bob if bob is x years old whats the sum of jacks and bobs age
2.how old was Bob when Jack was 1

Answers

Answer:

2. bob was -1 yrs old

Step-by-step explanation:

1-2=-1

what percent of a) Rs 80 is Rs 20 ? please give answer step by step and clearly please it's urgent ​

Answers

Answer:

16%

Step-by-step explanation:

80/100x  20/1 =  1600/100 cut0  n d16%a

i think its 16 percent

find the slope and the y intercept

Answers

Answer:

So the slope is -1 and the y-intercept is 4

Step-by-step explanation: I really hope this helps!

Slope = -1
Y intercept = 4

What is the value of this expression
-16+12
A.-28
B.-4
C.4
D.28

Answers

The answer is (B) -4

46% of what is 128?
A)278.3
B)58.9
C)5544
D)55.4

Answers

Answer:

128 is 46% of 278.3

Step-by-step explanation:

The sum of two numbers is 10. The larger number is 4 times the smaller number. What are the two numbers? Original system: x + y = 10, y = 4x Slope-intercept form: y = –x + 10, y = 4x Use the work shown to complete the statement. The slopes and y-intercepts of the two equations are , so this system has

Answers

Answer:

aight here ya go

The slopes and y-intercepts of the two equations are

✔ different

, so this system has

✔ exactly one solution

Step-by-step explanation: i got it wrong so you can get it right :0

The larger number is 8 while the smaller number is 2. The slope and y-intercept of the equations y = –x + 10 and y = 4x are different so the system has exactly one solution.

What is the equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

In another word, the equation must be constrained with some constraints.

As per the given system of equations,

x + y = 10, y = 4x

The slope and y-intercept of (x + y = 10 ⇒ y = -x + 10) will be -1 and 10.

The slope and y-intercept of y = 4x will be 4 and 0.

Substitute, y = 4x into x + y = 10

x + 4x = 10

5x = 10

x = 2

And, y = 4 x 2 = 8

Hence "The larger number is 8 while the smaller number is 2. The slope and y-intercept of the equations y = –x + 10 and y = 4x are different so the system has exactly one solution".

For more about the equation,

brainly.com/question/10413253

#SPJ5

can y’all help me please

Answers

I’m most likely wrong but I think it’s C. SO SORRY IF IM WRONG IF I AM PLZ REPORT MY ANSWER

Answer:

it would be 3rd one

Step-by-step explanation:

(2a)3 = (8a)3

(4b)3=64b3

simplify= (8ab)3

i dont now how to add

Answers

Answer:

number + number = number

use a calculator

Step-by-step explanation:

Answer:

1+1=2

Step-by-step explanation:

Just count up on your fingers

Hope this helps!! :)

What’s 1 plus 3 and write a paragraph on why that’s your awnser. Include details

Answers

Answer:

1+3=4

Step-by-step explanation:

why the hll do u need a paragraph on that ur in highschool, just why

Answer:4

Step-by-step explanation:

If you add the 1 to the 3 tht make 4

Which expresses the correct factorization of x2 + 8x + 16 = 0?
(x + 4)² = 0
(x - 4) (x + 4) = 0
(x - 2)² = 0
(x - 2) (x + 2) = 0

Answers

Answer:

The answer is (x + 4)² = 0

hope that helps

Answer:

(x + 4)² = 0

i took the test

Is 0.83 a rational number.

Answers

Yes! It’s the ratio of 83/100

What is the value of x? of y? of z? Enter only the number in the boxes below.​

Answers

Answer:

y=63

x=63

z=72

Step-by-step explanation:

Answer:

X= 63, Y= 63, Z=72

Step-by-step explanation:

4. Bobbie scores m marks in a test.
Georgia scores three times as many marks as Bobbie.

Answers

Marks of Bobbie = x

Then, marks of Georgia

= 3 times marks of Bobbie

= 3 times m

= 3 × m

= 3m

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