Solve the linear equation below using the substitution method

x-3y=7
2x+3y=9​

Answer:

1.21 divided by 1.1=1.1

2960 divided by 0.37=8000

132.03 divided by 8.1=16.3

Step-by-step explanation:

Answer:

Yeah!!!you're right, it's -7

Step-by-step explanation:

-2c -5c+8-4 = 53

-7c +4 = 53

-7c = 53 - 4

-7c = 49

c = -7

Answer:

the one on the right looks best for the slope because the slope is a lot larger than the one on the right the one on the right is smaller but a few inches few times I don't know you might want to check it before I actually answer it for you so I hope you found this kind of helpful thank you bye

Answer:

.50 per pound of apples in store

Answer:

The answer is A

Step-by-step explanation:

This one can be a little bit of a devil. If 1 is raised to an even power, it is plus 1. The key to the problem is 4^-3

The minus tells you to turn it over so that you get 1/4^3

4^3 = 64

1/4^3 = 1/64

Answer:wertyuiop[]\]

';lkjhgfd

Step-by-step explanation:

Answer:

Step-by-step explanation:

2^45

Answer:

v>-8 ; v<−3

Step-by-step explanation:

−10−2v<6

Step 1: Simplify both sides of the inequality.

−2v−10<6

Step 2: Add 10 to both sides.

−2v−10+10<6+10

−2v<16

Step 3: Divide both sides by -2.

−2v/−2 < 16/−2

v>−8

6v+12<−6

Step 1: Subtract 12 from both sides.

6v+12−12<−6−12

6v<−18

Step 2: Divide both sides by 6.

6v

6

<

−18

6

v<−3

The first picture I sent ( the one which is from -8 to 14) is for −10−2v<6 and the second one (that has -3 to -9) is for 6v+12<−6

I hope this helped :)

Answer:

Discount = Original Price x Discount %/100

Discount = 395.49 × 30/100

Discount = 395.49 x 0.3

You save = £118.65

Final Price = Original Price - Discount

Final Price = 395.49 - 118.647

Final Price = £276.84. (ANSWER)

original price of washing machine is $564.99 if the sale price of the washing machine is $395.49 with 30% off.

Percentage is defined as a given part or amount in every hundred

Based on the given conditions, formulate:

x×(1-30%)=395.49

Apply multiplicative distribution

x-0.3x=395.49

Combine the like terms

0.7x=395.49

x=395.49/0.7

Convert decimal to fractions

x=(39549/100)/(7/10)

x=39549/(10×7)

x=39549/70

x=564.99

Hence original price of washing machine is $564.99

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Answer: 65

Step-by-step explanation:

all angles of a triangle will add up to be 180 degrees there for add 80 + 35 to get 115 degrees and then subtract 115 from 180(180-115) to get the third angle of 65 degrees

Answer:

65

Step-by-step explanation:

80+35+?=180

115+?=180

115-115+?=180-115

?=65

Answer:

104

Step-by-step explanation:

∠JTS = ∠SRT  + ∠TSR   {exterior angles equals sum of opposite interiror angles}

27x - 4 = 18x + 2 + 30

27x  - 4 = 18x + 32

Add 4 to both sides

27x = 18x + 32 + 4

27x = 18x + 36

Subtract  18x from both sides

27x - 18x = 36

9x = 36

Divide  both sides by 9

x = 36/9

x = 4

∠JTS = 27x - 4

         = 27*4 - 4

         = 108 - 4

        = 104

Answer:

2. (x + 3, y - 7)

Step-by-step explanation:

Answer:

85

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle.

As you can see in the attached image we can find the measure of the interior angle using the straight line and find the value of missing angle

25 + 60 = 85

Answer:

Keith paid $0.25 less than Tony paid.

Step-by-step explanation:

Tony paid ($48 - 10%) = $43.2

Keith paid $42.95.

The difference is Tony paid $0.25 more, or Keith paid $0.25 less.

Answer:

Keith paid $0.25 less than Tony.

Step-by-step explanation:

Tony: 48 x 0.10 = 4.8

48 - 4.8 = $ 43.20 (Tony)

Keith: $ 42.95

43.20 - 42.95 = 0.25

5x-10=3(x+4)

         3x+12

5x-10=3x+12

   +10 -3x

2x=22

x=11

double check

5x11=55-10=45

11+4=15x3=45

Answer:

1h+2

Step-by-step explanation:

(1/2)-(3/2)=-(2/2)=-1

7-9=-2

-1h-2

1h+2

Answer:

1h+2.

Step-by-step explanation:

add up the stuffff$fffffffffff

Answer:

0.35

Step-by-step:

[tex] \frac{3}{4} - \frac{2}{5} = \frac{3 \times 5}{4 \times 5} - \frac{2 \times 4}{5 \times 4} = \frac{15}{20} - \frac{8}{20} = \frac{15 - 8}{20} = \frac{7}{20} = 0.35[/tex]

Answer:

4+(-2) = 2

-5+(-5)=-10

Step-by-step explanation:

x = most popular

y = second most popular

x+y=49652

x=y+6786

Substitute into the first equation

(y+6786)+y=49652

2y=49652-6786

2y=42866

y=21433

x=21433+6786=28219(answer)

Answer:

60 miles in 5 minutes

Step-by-step explanation:

Given, 720 mph = 720 miles per hour

Hour = 60

Equation: 60x = 5

1. 60 divided by 5 = 12

2. Since you found the x, divide the x (12) by 720

3. 720 divided by 12 = 60

Answer: 60 miles in 5 minutes

Step-by-step explanation:

If X represents the length of the side of a cube, the formula for the surface area of the cube, S =?

solution :

the area of each face of the cube = side × side

= X × X = X²

the cube has 6 similar faces, so the surface area of the cube could be:

S = 6 × X² = 6X²

Answer:

Surface Area = 6 × S²

Step-by-step explanation:

the surface area fo the cube :

if lenght = S, the surface area fo the cube :

SA = 6 × lenght × lenght

SA = 6 × S × S

SA = 6 × S²

Answer:

[tex] - 23x(x + 3) \\ { - 23x}^{2} - 69x \\ \\ \\ \\ \\ \\ hope \: it \: helps \\ stay \: safe \: healthy \: nd \:and \: happy[/tex]

Answer:

[tex]-23x^{2} -69x[/tex]

Step-by-step explanation:

Using the distributive property:

[tex]-23x(x+3)[/tex]

You will multiply both the x and the 3 inside the parantheses by the -23x outside.

[tex]-23x[/tex] · [tex]x = -23x^{2}[/tex]

Then:

[tex]-23x[/tex] · [tex]3 = -69x[/tex]

If you combine both you will recieve:

[tex]-23x^{2} -69x[/tex]

Answer:

You probably already figured it out, but the correct answer is the last one. Subtract 3 from the product of 9 and m

Step-by-step explanation:

Reason for this is 9m is the same as 9 multiplied by m, or the product of 9 and m. You always do multiplication before subtracting or adding, therefore you are subtracting 3 FROM the product of 9 and m

I hope this was clear

Brainiest if it helped?

Its ok if not. Have a great day and good luck with school!

Answer:

Step-by-step explanation:

A function is one-to-one if it passes the horizontal line test.  This is the case if a horizontal line intersects the graph in only one place.  

The graph of f(x) = x^2 - 5 is that of a parabola that opens upward.  There are several possibilities here:

1.  The horizontal line intersects the parabolic graph twice on the interval (-infinity,+infinity).  Therefore this function is not one-to-one on this interval

(-infinity,+infinity).

2. If we define the domain as [0,+infinity), a horizontal line will intersect this parabolic graph only once.  Therefore this function is one-to-one on [0,+infinity).

The expression written as a mixed number is 1 (11/20).

A fraction is a part of the whole represented by a/b, where a and b are any integers.

The given expression is 3 (3/4) - 2 (1/5).

Rewrite the expression as a mixed number:

3 (3/4) - 2 (1/5)

= 15/4 - 11/5

= (75 - 44)/20

= 31/20

= 1 (11/20)

Hence, the expression written as a mixed number is 1 (11/20).

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