Solve the system of linear equations by graphing. Y=-5/2x-7 X+2y=4

Answer:

500

Step-by-step explanation:

450/90 × x/100

how to solve x

100÷90=1.11111111111

1.11111111111×450

Answer:

5/9 pounds or rounded 0.5555... pounds

Step-by-step explanation:

Step 1:  Make an equation

5 / 9 = x

Step 2:  Solve

5 / 9 = x

5/9 pounds or rounded 0.5555... pounds

Answer: 5/9 pounds or rounded 0.5555... pounds

Answer:

5/9 of a pound

Step-by-step explanation:

5 pounds of clay is divided into 9 equal pieces

5 ÷ 9

This can be written as a fraction

5/9

Each block weighs 5/9 of a pound

Hope this helps :)

Answer:

Step-by-step explanation:

sodas ----x

hot dogs ---- y

x = 2y

x+y = 192

2y + y = 192

3y=192

y = 64

64 hotdogs and 128 sodas

The equation of the line is y=-1/5x+4/5.

Calculating m, the slope we subtract two of the points,

(-1, 1)

(4, 0)

This equals 0-1/4+1, which simplifies to -1/5

The slope is -1/5 and we can put that into the slope-intercept form along with a point to get b, the y-intercept.

So, y=-1/5x+b

Substituting x and y with a point.

1=-1/5(-1)+b

1=1/5+b

b=4/5

So, the equation is y=-1/5x+4/5.

The equation of a line is a single illustration of numerous points on the line. the general form of the equation of a line is of the form ax + via + c = zero and any factor on the road satisfies this equation. these two minimal requirements to shape the equation of a line are the slope of the road and a factor on the line.

Learn more about Equation of a Line here: https://brainly.com/question/13763238

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Answer:$1.33

Step-by-step explanation: What I did is I subtracted the 46 dollars in donations from the total they raised on day 1 to get the amount for just the cookies $150. Then I added the amount of the 2 total of cookies sold = 200. Then, I took the amount of cookies sold and divided it by the amount they made selling the cookies = 1.33. 200 ÷ 150 = 1.33

I hope this helps

Answer:

3X+2

Step-by-step explanation:

X+X+X+2=3X+2

Answer:

56

Step-by-step explanation:

Step 1:  Combine

23 + 33

(20 + 30) + (3 + 3)

50 + 6

56

Answer:  56

Answer:

56

Step-by-step explanation:

23+33=56

~♥~♥≧∇≦≧∇≦≧∇≦≧∇≦

The measure of angle b is 25°.

Solution:

Given data:

The "L" shape angle is a right angle.

Right angle is splitted by another line and two angles are formed.

One angle is 65° and the other angle is b.

Let us find the other angle b.

65° + m∠b = 90°

Subtract 65° from both sides of the equation.

m∠b = 90° – 65°

m∠b = 25°

Hence the measure of angle b is 25°.

Answer: 1.5 km/h

To find the speed use this:

distance/ time

12/8

Answer:

90km/h

Step-by-step explanation:

set up as this: 12km/8min = x/60min then cross multiply

12*60 = 720

8*x = 8x

solve for x

720 = 8x

90 = x

Answer:

true is the answer off this question

Answer:

True

Step-by-step explanation:

3n would mean 3 times n where 3 is the coefficient.

Answer:

Joyce has total 62 colored beads.

Step-by-step explanation:

For making groups of 9, let the number of beads be x.

total beads = 9x + 8

For making groups of 8, let the number of beads be y.

total beads = 8y + 6

As the total number of beads in both cases are same so,

   9x + 8= 8y + 6

or, 9x-8y = -2

Now lets check the values through hit and trial;

First check; x=6, y=7

   9*6 - 8*7 = -2

or, 54- 56 = -2

or, -2 =-2

This satisfies our equation.

Hence; Total beads = 9*6 + 8 = 62

The total number of beads joyce had is 62.

Number of beads she have is 62 .

Step-by-step explanation:

Here we have , joyce has between 25 to 75 colored beads. when she makes them into groups of 9, 8 beads are left out. when she groups into groups of 8, We need to find how many beads are left . Let's solve this:

when she makes them into groups of 9, 8 beads are left out equation is

[tex]9x+8[/tex]

when she groups into groups of 8 , 6 beads are left out, equation is

[tex]8y+6[/tex]

Equating both equation's we get:

⇒ [tex]9x+8 = 8y+6[/tex]

⇒ [tex]9x-8y = -2[/tex]

By hit & trial method , we put x = 6 & y=7:

⇒ [tex]9(6)-8(7) = -2[/tex]

⇒ [tex]54-56= -2[/tex]

⇒ [tex]-2= -2[/tex]

Since , LHS = RHS x = 6 & y=7 satisfies the equation [tex]9x+8 = 8y+6[/tex] . So putting value of x=6 in [tex]9x+8[/tex] we get:

⇒ [tex]9x+8[/tex]

⇒ [tex]54+8[/tex]

⇒ [tex]62[/tex]

Therefore, Number of beads she have is 62 .

The weight of 9 bags is 5.4 blocks

Solution:

Given that,

5 bags weigh the same as 3 blocks

We have to find how many blocks will 9 bags weigh

Let "x" be the weight of 9 bags

Then,

5 bags weigh the same as 3 blocks

9 bags weight the same as "x" blocks

From proportion we can say,

5 : 3 : : 9 : x

Therefore,

[tex]\frac{5}{3} = \frac{9}{x}\\\\5x = 27\\\\x = 5.4[/tex]

Thus the weight of 9 bags is 5.4 blocks

9 bags will be equal to 5.4 blocks

Step-by-step explanation:

Step 1 :

Given,

Weight of 5 bags = weight of 3 blocks

We need to find the weight of 9 bags

Step 2 :

From step 1 , we get

Weight of 1 bag = weight of 3 blocks ÷ 5

The weight of bags is in direct proportion to the weight of the blocks.

Hence

Weight of 9 bags =   3 blocks × 9 ÷ 5

                             =  [tex]\frac{27}{5}[/tex] blocks = 5.4 blocks

Step 3 :

Answer :

9 bags will be equal to 5.4 blocks

Answer:

  A) 18x24

Step-by-step explanation:

The ratio of the dimensions will be the same for a similar rectangle.

 12/16 = 3/4 . . . given rectangle

__

  18/24 = 3/4 . . . choice A is similar

  9/14 ≠ 3/4 . . . . choice B is not similar

  6/10 = 3/5 . . . . choice C is not similar

  16/20 = 4/5 . . . . choice D is not similar

Answer: 180 degrees

Step-by-step explanation:

A triangle has 3 sides which is always equal to 180 degrees.

I hope this helps.

Answer:

180 degrees

Step-by-step explanation:

All triangles have three sides and are suplementary (meaning they add up to 180 degrees) so the answer to your question is 180 degrees.

Answer:

25%

Step-by-step explanation:

Sugar Syrup = 40 grams

10 grams / 40 grams = 1/4

1/4 = 25%

Answer:

40 grams of 25% sugar syrup

Step-by-step explanation:

Answer:

The polygon has 9 sides

Step-by-step explanation:

we know that

A regular polygon has equal length sides and equal interior angles

step 1

Find the measure of the interior angle

Remember that

The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)

Let

x ----> the measure of each interior angle in the regular polygon

so

[tex]x+40^o=180^o[/tex]

solve for x

[tex]x=180^o-40^o=140^o[/tex]

step 2

Find the number of sides of the regular polygon

we know that

The measure of each interior angle in a regular polygon is given by the formula

[tex]x=\frac{(n-2)180^o}{n}[/tex]

where

n is the number of sides of the polygon

substitute the given values

[tex]140^o=\frac{(n-2)180^o}{n}[/tex]

solve for n

[tex]140n=180n-360\\180n-140n=360\\40n=360\\n=9\ sides[/tex]

therefore

The polygon has 9 sides

Answer:

x=6, y= 63

Step-by-step explanation:

Please see attached picture for full solution.

Answer:

170 inches

Step-by-step explanation:

34/x = 20/100

x = 170 inches

Answer: 170 inches

Step-by-step explanation: 20% multiply by 5(100%)

Substitute 20% with 34, and end with 170 inches

Answer:

See below

Step-by-step explanation:

sqrt(x^2+81)=x+10

x^2+81=x^2+20x+100 (which is one of the options)

81=20x+100

-19=20x

x=-19/20

So there's the work done.

Answer:

The equation of the line is y=1x and I will show you a picture of a graph with your points and a line of that equation.

Step-by-step explanation:

Answer: 47

Step-by-step explanation:

Answer:

47 is the answer

Step-by-step explanation:

Answer:

yes where is the question

Answer:

x=0 and y=2/3

Step-by-step explanation:

Multiply top equation by 2 -> 4x+6y=4

Cancel out the "6y"s by elimination -> 3x=0

Divide both sides by 3 -> x=0

Plug x=0 into x+6y=4 to get y -> 0+6y=4 -> 6y=4 -> y=4/6=2/3

So x=0 and y=2/3

Answer:

g(3)=34

Step-by-step explanation:

Just plug in 3 for x:

4(3)^2-3(3)+7

4(9)-9+7

36-9+7

27+7

34

So g(3)=34

Answer:

55

Step-by-step explanation:

For the mean you add together all of the values, and then divide the sum by the number of digits there are.

23+91+83+31+49+11+60+92 = 440

440/8 = 55

23 + 91 + 83 + 31 + 49 + 11 + 60 + 92 = 440/8 = 55

Mean: 55.

The second pick is dependent on the first one.

Let [tex]a[/tex] be the number of tiles with the letter A, and [tex]n[/tex] be the total number of tiles.

With the first pick, you have probability [tex]\frac{a}{n}[/tex] to pick an A, because you have [tex]a[/tex] "good" cases out of [tex]n[/tex] possible cases.

The second pick depends on the first one:

Answer:

19+d=234

Step-by-step explanation:

"increased by d" is addition. "is" is equal. So Putting these together it would be 19+d=234.

Hope this helped!

Answer:

y=3x that is the answer

Answer:

a) : (2,0), (3,0), (-5,0)

Step-by-step explanation:

(x - 2)(x - 3)(x + 5)=0 (y=0)

x-2=0, x-3=0, x+5=0

x=2, x=3, x=-5

x-intercepts: (2,0), (3,0), (-5,0)