Given the following system, what should the second equation be multiplied by so that x is eliminated?
4x−y=9

x+3y=12

answers:
4

−13

13

−4

Answer:

12*56-56+11=12

Step-by-step explanation:

12 for 56

Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Answer:Simplifying

x = -2.125

Step-by-step explanation:Add '-10' to each side of the equation.

10 + -10 + 8x = -7 + -10

Combine like terms: 10 + -10 = 0

0 + 8x = -7 + -10

8x = -7 + -10

Combine like terms: -7 + -10 = -17

8x = -17

Divide each side by '8'.

x = -2.125

Simplifying

x = -2.125

Answer:

I think it would be 4 not sure

Answer:

84

Step-by-step explanation:

You do problems like these by finding the area of each shape individually and then adding them together. I first found the area of the rectangle by multiplying 6 in. by 11 in. to get 66 in.^2. I then found the area of the triangle by multiplying length of the base of the triangle which is the same as the short side of the rectangle at 6 in. by the 6 in. height and dividing it by 1/2. This gets 18 and 66+18=84

Answer:

36.40

Step-by-step explanation:

Make a proportion : 35/100 = x/56. 35 times 56= 19.6. 56-19.6= 36.4

Hope this helps!

Answer:

The sales price is $36.40

Answer:

7.61577

Step-by-step explanation:

Answer:

bro I ain't got no idea try googling it man

Answer:

Total stamps = 240

ratio= 3:8

3x + 8x = 240

11x = 240

x = 240/11 = 21.8

then, callum's stamps = 3x = 3 * 21.8 = 65.4

Isabel's stamps = 8x = 8 * 21.8 = 174.4

After buying the stamps,

ratio = 3:2

callum's stamps = 3x

Isabel's stamps = 2x

= 3x + 2x = 240

5 x = 240

x = 240/5 = 48

callum's stamps = 3x = 3 * 48 = 144

Isabel's stamps = 2x = 2 * 48 = 96

no. if stamps bought by calling = 144 - 65.4 = 78.6 stamps

hope it helps you

Answer:

The 3 one

Step-by-step explanation:

So first you need to find all the angles.

Triangles all have a total degree of 180.

Then you can start doing trig. To find c I did (4sqrt3)cos60 that equals 3.464 which is 2sqrt3. Then I figured out a by doing the same thing but with sine. (4sqrt3)sin60 and that equals 6. Then I moved to the other triangle. I figured out d next. 6tan45° and that equals 6. Then I did b by doing 6/cos45 and I got 6sqrt2

Answer:

8

Step-by-step explanation:

You have to list the numbers in the correct order then fond the one that falls in the middle, if there are 2 numbers that fall in the middle, then you add those 2 then divide by 2.

Hope it helps! Merry Christmas!

Answer:

8

Step-by-step explanation:

Arrange the set of numbers from least to greatest:

3,6,6,6,8,9,16,16,18

Start from both ends and cross them off until you're left with just one.

6,6,6,8,9,16,16

6,6,8,9,16

6,8,9

8

The median is 8 because that's what you're left with.

Answer:

Step-by-step explanation:

480 = 100%

72  =   ?       you can find it doing  (72(100))/480

72(100)= 7200      

7200/480= 15    

the answer is 15%

have a nice day :)

Answer:

(i) 0/7

(ii) 3/7

Step-by-step explanation:

In a deck of 52 playing cards, there are 13 cards of each clubs, spades, diamonds, and hearts. From those 13 cards, each group has 1 King, Queen, Jack respectively.

No.of total outcomes = 7

(i) In the entire 52 cards, there will be 4 Kings.

The probability of getting 4 kings in 7 cards can be 4/7.

But since there are only 4 kings (4<7), the probability of getting all kings in 7 cards would be 0/7.

Answer:

64 adult tickets were sold and 36 children tickets were sold

Step-by-step explanation:

i created two equations. 7A + 4C = 592 and A + C = 100. A stands for adult tickets and C stands for children tickets. in order to find the value of C, the children tickets, i took the second equation, A + C = 100, and subtracted A on both sides to get C = -A + 100. i then plugged the value of c into the first equation i created. i then got 7A + 4(-A+100) = 592. after that, i distributed the 4 into the parentheses and got 7A - 4A + 400 = 592. from there, you solve and get 3A = 192. divide 3 from both sides, and get the value of A = 64. then, you go back to the second equation, A + C = 100, and plug in your value of A to get 64 + C = 100. you can then go on to solve for C and get 36. your final answer is 64 adult tickets and 36 children tickets were sold.

Answer:

C

Step-by-step explanation:

10/4=2.5

2.5x38=95

95 minutes= 1 hour 35 minutes

Answer:

a

Step-by-step explanation:

let the third side and second side be x and s respectively

a/c to question,

X = s - 10

Answer:

2/5

Step-by-step explanation:

In order to find the probabability, you first need to find your total. So:

A, B, C, D,

8+ 6 + 4 + 2 =

20

Since, 20 is out toal it goes in our denominator

Now since we artrying to find the probability of A then we count the number of students who an A and place that in our denominator

8/20

We simplify

2/5

Answer:

2/5

Step-by-step explanation:

Answer:450

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

sorry for being late

good luck m8s

Answer:

The answer is B

Step-by-step explanation:

4x (green, left)

-2 (red, left)

=

2x (red, right)

6 (orange, right)

Hope that helps

9514 1404 393

Answer:

  C.  greater than 180°

Step-by-step explanation:

Arcs are classified as "major" or "minor" depending on whether they are more or less than half a circle. A major arc is more than half a circle so is greater than 180°.

Answer:

first what do you look like???,

Answer:

Forget the account but I think it's A

Step-by-step explanation:

because if you take the number of how long the side lengths are (4.8in) then you times it by how many sides there are on the cube (12 side) and that is 57.6in

No positive but I think so

Answer:

-15

1.9

Step-by-step explanation:

-7 - 8 = -15

1 and 6/7 = 1.857142857142857142857142.....

about 1.9

The correct statements about given synthetic division are C, D, and F

"It is a polynomial with degree 2."

"It is defined as a way of dividing one polynomial by another polynomial of first degree."

For given question,

We have been given a quadratic polynomial [tex]F(x)=4x^{2} -17x-15[/tex]

We can factorize above quadratic polynomial as,

[tex]F(x)\\=4x^{2} -17x-15\\=4x^{2} -20x+3x-15\\=4x(x-5)+3(x-5)\\=(x-5)(4x+3)[/tex]

This means the factors of [tex]4x^{2} -17x-15[/tex] are (x - 5) (4x + 3)

And the roots of the polynomial would be,

[tex]\Rightarrow F(x)=0\\\Rightarrow 4x^{2} -17x-15=0\\\Rightarrow (x-5)(4x+3)=0\\\Rightarrow x-5=0~~,~~4x+3=0\\\Rightarrow x=5~~,~~x=-\frac{3}{4}[/tex]

This means, the roots of [tex]4x^{2} -17x-15[/tex] are 5 and [tex]\frac{-3}{4}[/tex]

Therefore, the correct statements about given synthetic division are C, D, and F

Learn more about polynomial here:
https://brainly.com/question/11536910

#SPJ2

Answer:

Graph shown below

Step-by-step explanation:

Cubic Root Graph

The graph of the function

[tex]f(x)=\sqrt[3]{x}-4[/tex]

Is shown in the attached image. Some points are calculated below:

We'll take x={-8,-1,0,1,8}:

[tex]f(-8)=\sqrt[3]{-8}-4=-2-4=-6[/tex]

Point (-8,-6)

[tex]f(-1)=\sqrt[3]{-1}-1=-1-4=-5[/tex]

Point (-1,-5)

[tex]f(0)=\sqrt[3]{0}-4=0-4=-4[/tex]

Point (0,-4)

[tex]f(1)=\sqrt[3]{1}-1=1-4=-3[/tex]

Point (1,-3)

[tex]f(8)=\sqrt[3]{8}-1=2-4=-2[/tex]

Point (8,-2)

The graph of [tex]\rm f(x) = \sqrt[3]{x} - 4[/tex] is attached below and this can be sketched by substituting the values of x in the function f(x) and then plotting the points on the graph.

Given :

[tex]\rm f(x) = \sqrt[3]{x} - 4[/tex]

The following steps can be used in order to determine the graph of the given function f(x):

Step 1 - Determine the value of f(x) at the values of x = {-8,-4,0,4,8}.

Step 2 - At (x = -8) the value of f(x) is given by:

[tex]\rm f(x) = \sqrt[3]{-8} - 4[/tex]

[tex]\rm f(x) = -2 - 4 = -6[/tex]

Step 3 - At (x = -4) the value of f(x) is given by:

[tex]\rm f(x) = \sqrt[3]{-4} - 4[/tex]

f(x) = -5.6

Step 4 - At (x = 0) the value of f(x) is given by:

[tex]\rm f(x) = \sqrt[3]{0} - 4[/tex]

f(x) = -4

Step 5 - At (x = 4) the value of f(x) is given by:

[tex]\rm f(x) = \sqrt[3]{4} - 4[/tex]

f(x) = -2.4

Step 6 - At (x = 8) the value of f(x) is given by:

[tex]\rm f(x) = \sqrt[3]{8} - 4[/tex]

f(x) = -2

Step 7 - Now, plot the points obtained in the above steps on the graph in order to draw the graph of the given function [tex]\rm f(x) = \sqrt[3]{x} - 4[/tex]

The of the function [tex]\rm f(x) = \sqrt[3]{x} - 4[/tex] is attached below.

For more information, refer to the link given below:

https://brainly.com/question/4700926

Answer:

2 = 5

5 = 12.50

4 = 10

7 = 17.50

6 = 15

9 = 22.50

11 = 27.50

Step-by-step explanation:

a