Solve the system by substitution.
x+y=3
y=x? -5x -5
-

Answers

Answer 1
x= 8/3, y= 17/3


Double check to see if it’s the right answer

Related Questions

A bin contains 26 markers. Four students each choose the same number of markers. If they choose as many markers as possible, how many markers are left in the bin?

Answers

Your're Answer:

there would be 13 markers for each student and 26 divided by 13 would be 2 so there is two markers left in the bin.

Help me on the math problem

Answers

Answer:

B

Step-by-step explanation:

rise over run the y-intercept is 3 and you go down 4 and run 3

How many real roots are there for the equation, x^2+4x-1=0 I think the answer is two real roots

Answers

Answer:

2 real roots

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

Then the nature of the roots are found using the discriminant

Δ = b² - 4ac

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then 2 complex roots

x² + 4x - 1 = 0 ← is in standard form

with a = 1, b = 4, c = - 1, then

b² - 4ac = 4² - (4 × 1 × - 1 ) = 16 + 4 = 20

Since b² - 4ac > 0 then the equation has 2 real and distinct roots

Given the graph of y = -1/2x + 1, state the domain and range.

Answers

Answer:

Step-by-step explanation:

x in (-oo:+oo)

(1/2)*x+1 = 0

1/2*x+1 = 0 // - 1

1/2*x = -1 // : 1/2

x = -1/1/2

x = -2

x = -2

x = -2

hope this helps !!!

HELPPP I DONT GET THISSS
Sally collects art work. She has 21 pieces of art so far. She buys two pieces of art every month. Set a variable and write an equation to find out how many months does it take for her to have 35 pieces of art work.

Answers

2x + 21 = 35
hope this helps

Answer:

It will take 7 months.

Step-by-step explanation:

Let m represent the number of months.

21 + 2m = 35

Then, isolate the variable.

2m = 35 - 21

2m = 14

m = 7

help me this is due in 2 minutessss​

Answers

Answer:

-3 times 8+1x

Step-by-step explanation:

What is an equation of a line that passes through the points (3, -5) and (-6,-8)?

Answers

Answer:

y=1/3 x -6, y equals one third x minus 6

Step-by-step explanation:

The equation will look like -5/3 - -8/-6 since we're finding the slope. That equals 3/9 or 1/3, the slope is 1/3. But since we also need to find the y-intercept, we need to solve another equation, y-y1=m(x-x1). Now we just need to put in the values. y-(-5)=1/3(x-3) this becomes y+5=1/3 x - 1, subtract 5 to isolate y, y=1/3 x -6.

What two fractions are equal to 2

Answers

Answer:

Step-by-step explanation:

8/4 and 6/3

Kim bought 12 boxes of drinks

He paid $15 for each box.

There were 12 drinks in each box.

Kim sold 3/4 of the drinks for $1.50 each.

He sold all of the other drinks at a reduced price.

He made an overall profit of 15%.

Work out how much Kim sold each reduced price drink for.

Answers

Answer:

The amount Kim sold each reduced price drink is $1.25 each

Step-by-step explanation:

The number of boxes of drinks Kim bought = 12 boxes

The amount Kim paid for each box = $15

The number of drinks in each box = 12 drinks

The amount Kim sild 3/4 of the drinks = $1.50 each

The amount Kim sold the remaining drinks = At a reduced rate

The amount of profit Kim made = 15%

Therefore, we have;

The total amount Kim bought the whole drinks = 12 × $15 = $180

The total number of drinks = 12 × 12 = 144 drinks

3/4 of the drinks = 3/4×144 = 108 drinks

The amount Kim sold the 108 drinks = 108 × $1.5 = $162

The amount of profit Kim made = 15%

Therefore;

(((The total amount Kim sold the whole drinks) - (The total amount Kim bought the whole drinks))/(The total amount Kim bought the whole drinks)) × 100 = Percentage profit

(((The total amount Kim sold the whole drinks) - ($180))/($180)) × 100 = 15%

The total amount Kim sold the whole drinks = 0.15×$180 + $180 = $207

The total number of the remainder of the drinks = 144 - 108 = 36 drinks

The amount Kim sold the remainder of the drinks = $207 - $162 = $45

The amount Kim sold each of the remainder of the drinks at reduced price = $45/36 = $1.25

Therefore, the amount Kim sold each reduced price drink = $1.25 each.

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Write the expression in simplest form. 11 I + 3​

Answers

Answer:

the correct answer is 8

Answer:

The answer is 8 if you do it correctly

Step-by-step explanation:

36= -3d + 9
What is d
D=

Answers

Answer:

D = -9

Step-by-step explanation:

Write an equation of the line that is perpendicular to line y =(1/2) x – 7 and passes the point (0, – 3).

Answers

Answer:

y = -2x -3

Step-by-step explanation:

If a line is perpendicular to another line, it means that the gradient of the new line (one that is perpendicular) is going to be the negative reciprocal of the old one.

Reciprocal means that it is flipped. So 1/2 would be 2 and 5 would be 1/5

A yard is approximately 5.68 x 10-4 miles. How is this number expressed in standard decimal notation?
A. 0.568
B. 0.0568
C. 0.000568
D. 56,000​

Answers

Answer:

C: 0.000568 miles

Step-by-step explanation:

Essentially, the exponent on the 10 is how many places to move the decimal point, and negative versus positive dictates whether to move it right or left respectively.

Answer:

Step-by-step explanation:

The answer is A. 0.568

C={0,1,3,5,7},D={1,2,4,6,7}} intersection in them??​

Answers

Answer:

the answer isC n D= {1,7}

Answer:

The intersection in them is {1, 7}

Step-by-step explanation:

Let us revise some definition in the  operation of sets of numbers

The intersection of two sets of numbers is the set of all elements belong to both setsThe union of two sets of numbers is the set of all elements belong to one of the two sets (without repetition)

→ Ex: set A = {1, 2, 3, 5, 6} and set B = {4, 5}, then

A ∩ B = {5} ⇒ ∩ is the symbole of intersection A ∪ B = {1, 2, 3, 4, 5, 6} ⇒ ∪ is the symbole of union

Let us solve the problem

∵ C = {0, 1, 3, 5, 7} , D = {1, 2, 4, 6, 7}

→ The common elements in the two sets are 1 and 7

∴ C ∩ D = {1, 7}

The intersection in them is {1, 7}


Solve for x:
-2x – 9= X – 21

Answers

Answer:

x = 10

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

add 2x to both sides

-9=3x-21

add 21 both sides

12=3x

divide each side by 3

4=x

Simple math problem

*Multiple choice*

Answers

Answer:

I believe its A

Step-by-step explanation:

Found the answer and its A, good luck.

Show AND justify each step of the solution. You will not receive credit unless you justify the step.

Solve for x.

3.5(7-x)+32=106-1.5(4x+18) Justification

Answers

Answer:

x=9

Step-by-step explanation:

find the area if length is 4x, width is 9 and x is 1/3

Answers

Answer:

12

Step-by-step explanation:

4 • 1/3 = 4/3

9 • 4/3 = 36/3

36/3 simplified is 12

Which difference is about 10? O A. 55.7 – 55.6 O B. 43.2 - 38.4 O C. 60.9 - 48.7 0 D. 52.5 - 26.8​

Answers

Answer
D. 52.5
I think

A student finds a shiny piece of metal that she thinks is aluminum. In the lab, she determines that the metal has a volume of 245 cm3 and a mass of 612 g. Calculate the density. Is the metal aluminum?

Answers

Answer:

See below.

Step-by-step explanation:

The density = mass / volume

=  612 / 245

= 2.50 g/cm^3.

The literature  states a density of 2.70 for the density of aluminium. The only other  metal which is close to this value is strontium ( d = 2.64) which is a silvery colour so it might be that.  One way to find out which it i s to see if the metal reacts with water. Aluminium does  not while strontium does.

im giving brainliest to the best answer pls help

Answers

Answer:

$4

Step-by-step explanation:

Science is Hayley's favorite class! She especially loves doing experiments. Today, she began an experiment with 260 grams of an unknown solid. During the experiment, the change in the mass of the solid was

84 grams.
What is the final mass of the solid?

Answers

Answer:

I got u the correct answer is (176)

Step-by-step explanation:

I love math so i am correct.

Evaluate for (ab)^2 for a= 4 b= -3?

Answers:
144
36
81
24

Answers

Answer:

144

Step-by-step explanation:

(ab)²

(4*-3)²

(-12)²

144

Best of Luck!


During November, sales are
at their peak. The store
manager must work 40
hours that week. How much
will the manager earn?

Answers

Answer:

$540

Step-by-step explanation:

$27 x 20

You work at a fruit stand that sells apples for $2 per pound, oranges for $5 per pound, and bananas for $3
per pound. Yesterday you sold 60 pounds of fruit and made $180. You sold 10 more pounds of apples than
bananas. How many pounds of each kind of fruit did you sell yesterday?

Answers

28lbs apples most, 14lbs bananas range, 18 bananas

what is 2/3 divided by 5/3

Answers

Answer:

2/5

Step-by-step explanation:

Step 1:

2/3 ÷ 5/3      Equation

Step 2:

2/3 × 3/5      Reciprocal

Answer:

2/5   Multiply

Hope This Helps :)

Missing only a few days of school will not impact your grades.
Please select the best answer from the choices provided
T
O
T7

Answers

Answer:

the answer is false

Step-by-step explanation:

Plz answer with details

Answers

Answer:

[tex]\boxed{x^9}[/tex]

Step-by-step explanation:

[tex]x^6 \times x^3[/tex]

[tex]= ( x \times x \times x \times x \times x) \times ( x \times x \times x)[/tex]

[tex]= x \times x \times x \times x \times x \times x \times x \times x[/tex]

[tex]= x^9[/tex]

Hope this helped you!

what’s number 57 and 58?

Answers

Answer:

57. -2 yd

58. -$10

simple subtraction

Given the function f(x)=x2+2x+1, find: e f(a)

Answers

Answer:

f(a) = a^2 + 2a + 1

Step-by-step explanation:

Given the function f(x)= x^2 +2x + 1, find: f(a):

Merely substitute ' a ' for x:

f(a) = a^2 + 2a + 1

If you really want e*f(a), multiply the above by e:

e*f(a) = ea^2 + 2ea + e

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