Justine had $10 before tutoring t hours for $7 per hour. How much money does she have now

Answer:

a. Subtraction property

b. Addition property and Multiplication property

Step-by-step explanation:

Given

[tex]5y = 25[/tex]

Solving (a): Which property is applied to [tex]5y-7 = 25-7[/tex]

The property applied is the subtraction property of inequality, and it states that:

If [tex]a = b[/tex]

Then

[tex]a - x = b - x[/tex]

So, in this case:

[tex]a = 5y, b = 25\ and\ x=7[/tex]

Solving (b): Other properties

1. The additive property of equality

If [tex]a = b[/tex]

Then

[tex]a + x = b + x[/tex]

So, the expression can be written as:

[tex]5y + 12 = 25 + 12[/tex]

When 12 is subtracted from both sides, the equation returns to the original

i.e.

[tex]5y + 12 - 12 = 25 + 12 - 12[/tex]

[tex]5y = 25[/tex]

2. The multiplication property of equality

If [tex]a = b[/tex]

Then

[tex]a * x = b * x[/tex]

So, the expression can be written as:

[tex]5y* 2 = 25 * 2[/tex]

[tex]10y = 50[/tex]

When both sides are divided by 2, the equation returns to the original

i.e.

[tex]\frac{10y}{2} = \frac{50}{2}[/tex]

[tex]5y = 25[/tex]

Answer:

I Have the same question

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

80 × 7 = 560 for the answer

Since all sides are equal, all angles equal 60 degrees

3y= 60

y=20

2x=60

x=30

Answer:

[tex]6\pi[/tex] or approximately [tex]18.85[/tex] units

Step-by-step explanation:

The formula for finding the circumference of a circle is [tex]C=2\pi r[/tex], where [tex]C[/tex] = circumference and [tex]r[/tex] = radius. In this case, [tex]r=3[/tex], so after plugging that into [tex]C=2\pi r[/tex], we get:

[tex]C=2\pi r\\ = 2*\pi *3\\=6\pi[/tex]

Since [tex]\pi[/tex] is approximately [tex]3.1415[/tex], [tex]6\pi =6*3.1415=18.849[/tex], which rounds to [tex]18.85[/tex]. Therefore, the circumference of the circle is [tex]6\pi[/tex], or approximately [tex]18.85[/tex] units. Hope this helps!

Answer:

y2-y1 / x2-x1

(-9-6) / (-6+9)

= -5

Sorry if wrong

Answer: - 5

Step-by-step explanation:

y2-y1 / x2 - x1

(-9 - 6) / (-6 + 9)

= -15 / 3 = -5

Answer:

Option 1, y = 3·x³ - 3 is not a linear function because the power of x is 3

Option 2 is a linear function of the form y = m·x + c, where m = 8.75 and c = 0

Option 3 is not a linear function because the power of x is -1 ≠ 1

Option 4 is a curved line graph and therefore is not a linear function

Option 5 is a linear function because the points of the graph are in a straight line

Option 6 is a linear function because the it has a straight line graph

Option 7 is a linear function because the "y" values has a common first difference of -15

Option 8 is not a linear function because the "y" values do not have a common first difference. (1 - 2) ≠ (2/3 - 1)

Option 9 is not a linear function because the data does not form a graph with a straight line

Option 10 is not a linear function because the dependent variable or "y" values which are the HEIGHT (YARDS) values, do not have a constant or common first difference (7.2 - 0) ≠ (10.7 - 7.2)

Step-by-step explanation:

A linear function is a function with a straight line graph and the general equation of a linear function is of the form,  y = f(x) = m·x + c.

The linear function has one dependent variable, "y" and one independent variable "x" with the exponent of the x being the first power or one and the "y" values has a common first difference value

Answer:

7q + 12

Step-by-step explanation:

6q + 1 + q + 11

add like terms. add 6q and q together and then add 1 and 11 together

6q + q + 1 + 11

7q + 12

7q + 12 is your answer. i hope this helps :)

Answer:

7q + 12

Step-by-step explanation:

40.8 is 34% of 120

you simply do .34 x 120.

If you were trying to do something like: 40.8 is what percent of 120? then you would do 40.8/120, and get .34, which is 34%.

Answer:

b

Step-by-step explanation:

Answer: 40

Step-by-step explanation:

Easy subtraction

55 - 15

= 40

Answer:40

Step-by-step explanation:

Just subtract 55 and 15

Answer: Rico is right.

(-1)(3x + 5)²

Step-by-step explanation: If it were the difference of two squares, the -30x would not be there.

It makes sense to factor out (-1) fry the trinomial, leaving all positive terms.

Then factor 9x² + 30x + 25 as

(3x + 5)²

Answer:

Solution

6+2/3

Step-by-step explanation:

Answer:

69

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

HOPE THIS HELPS

Answer:

with whattttttttttt is it a test

Answer:

Alexa and Siri are 22 miles apart on a trail. They start moving toward each other. Siri moves at a constant speed of 1.5 miles per hour. Alexa walks at a constant speed of 2.5 miles per hour. How long does it take until Alexa and Siri meet on the trail?

Step-by-step explanation:

Alexa and Siri are 22 miles apart on a trail. They start moving toward each other. Siri moves at a constant speed of 1.5 miles per hour. Alexa walks at a constant speed of 2.5 miles per hour. How long does it take until Alexa and Siri meet on the trail?

Answer:

the twins will always have the same age

Step-by-step explanation:

the equation for jasmine's age is 2(3x+6), while the equation for james's age is 3(2x+4)

2(3x+6) = 2*3x + 2*6 = 6x + 12

3(2x+4) = 3*2x + 3*4 = 6x + 12

since both have the same equation, both will be the same age when you plug in the same x value

Answer:

(6,8)

Step-by-step explanation:

Just multiply hope I helpEd

Answer:

Result

Step-by-step explanation:

Given the parallelogram

Here are some of the properties of a parallelogram:

We know that the diagonals of a parallelogram bisect each other.

In our case, the diagonals PR and QS bisect each other.

Thus, we get

Given RT = x and TP = 5x-28, so

[tex]x = 5x-28[/tex]

[tex]5x-x = 28[/tex]

[tex]4x = 28[/tex]

divide boh sides by 4

[tex]4x/4 = 28/4[/tex]

[tex]x = 7[/tex]

Similarly,  we can determine the value of y.

As

[tex]QT = TS[/tex]

Given QT = 5y and TS = 2y+12, so

[tex]5y = 2y+12[/tex]

[tex]5y-2y = 12[/tex]

[tex]3y = 12[/tex]

divide both sides by 3

[tex]3y/3 = 12/3[/tex]

[tex]y = 4[/tex]

Result

Answer:

Infinity

Step-by-step explanation:

4,6 and 4,10

10 - 6=4

4 - 4=0

4 divided by 0 = Infinity

Answer:

See the picture down below

Step-by-step explanation:

When you are drawing a line you should first mark the y-intercept, which in this case it's (0,-3) because the the b in the equation is -3. Then we will go 2 units up then 1 unit right. Keep going until you've run out of room. Then draw the line going through all the points.

The graph of  y = 2x - 3 is attached and slope of the given graph is 2.

A line is an infinitely long object with no width, depth, or curvature.

y=mx+b is the standard form of a line, where m is slope and b is the y intercept.

When a line passes through (x₁, y₁) and (x₂, y₂) then slope

m=y₂-y₁/x₂-x₁

The given equation is  y = 2x - 3

When we compare this with standard form

m is 2 which is slope.

To draw graph we have to find few values of x and y.

If x=0,

then y=-3

(0, -3) is one point in the line.

If x=1

then y=-1

(1, -1) is second point in the line.

if x=2

y=1

if x=3

then y=3

if x=4

then y=5

Hence, the graph of  y = 2x - 3 is attached and slope of the given graph is 2.

To learn more on Straight line click:

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Answer:

  (d)  Yes. (3x + 3) - (2x + 2y + 4)​

Step-by-step explanation:

The first answer choice results in a monomial, -2y

The second answer choice results in a binomial, x -y

The third answer choice is proved wrong by the fourth answer choice.

The fourth answer choice results in x -2y -1, a trinomial.

Answer:

he has 10 type of each coin

Step-by-step explanation:

Total number of cents in possession is calculated as;

= 25 + 10 + 5

= 40 cent

Total amount in possession = $4

                                               = 400 cent

Since he has equal number of each cent, let this equal number be "y";

40cent (y) = 400cent

40y = 400

divide both sides by 40

[tex]\frac{40y}{40} = \frac{400}{40} \\\\y = 10[/tex]

Therefore, he has 10 type of each coin

Answer:

9

Step-by-step explanation:

if scale factor is 3/5, then

(x+12):35=3:5, ⇒

The value of x in the pair of polygons is 19 .

Given,

Two similar triangle .

Now,

The side of one triangle is 3x -12 .

The side of other triangle is 50 .

As the triangle are similar then the ratio of corresponding sides will be equal to the scale factor .

So,

3x - 12/ 50 = 9/10

3x - 12 = 45

3x  = 57

x = 19

Thus the value of x is 19 .

Know more about triangles ,

https://brainly.com/question/2773823

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Answer:

it takes Robert 3 years to get $72

Step-by-step explanation:

Answer:

$72 i think

Step-by-step explanation:

Answer: Median is 18 and mean is 29.7

Step-by-step explanation: