7. Erica’s piggy bank has quarters and nickels in it. The total number of coins in the piggy bank is 50. Their total value is $8.90. How many of each type are in the piggy bank?

Answer:

D)

Step-by-step explanation:

Take any two points

(-6, 8)  & (3,2)

[tex]Slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\\=\frac{2-8}{3-[-6]}\\\\\\=\frac{-6}{3+6}\\\\\\=\frac{-6}{9}\\\\\\=\frac{-2}{3}[/tex]

Answer:

scale factor = [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Given

A(4, - 2 ) → A'(1, - [tex]\frac{1}{2}[/tex] )

To determine the scale factor compare the ratio of corresponding coordinates, image to original, that is

scale factor = [tex]\frac{1}{4}[/tex] = [tex]\frac{-\frac{1}{2} }{-2}[/tex] = [tex]\frac{1}{4}[/tex]

Answer:

C. -4<-1<0<2

Step-by-step explanation:

Since the bigger the negative, the less it is, and since negatives are less than positives, and 0 is more than a positive and less than a negative, the answer is C.

Answer:

d = 81

Step-by-step explanation:

Solve for d:

36 = (4 d)/9

Hint: | Reverse the equality in 36 = (4 d)/9 in order to isolate d to the left hand side.

36 = (4 d)/9 is equivalent to (4 d)/9 = 36:

(4 d)/9 = 36

Hint: | Multiply both sides by a constant to simplify the equation.

Multiply both sides of (4 d)/9 = 36 by 9/4:

(9×4 d)/(4×9) = 9/4×36

Hint: | Express 9/4×4/9 as a single fraction.

9/4×4/9 = (9×4)/(4×9):

(9×4)/(4×9) d = 9/4×36

Hint: | Express 9/4×36 as a single fraction.

9/4×36 = (9×36)/4:

(9×4 d)/(4×9) = (9×36)/4

Hint: | Cancel common terms in the numerator and denominator of (9×4 d)/(4×9).

(9×4 d)/(4×9) = (4×9)/(4×9)×d = d:

d = (9×36)/4

Hint: | In (9×36)/4, divide 36 in the numerator by 4 in the denominator.

36/4 = (4×9)/4 = 9:

d = 9×9

Hint: | Multiply 9 and 9 together.

9×9 = 81:

Answer: d = 81

Answer: d=81

Step-by-step explanation:

Given

36=4/9 d

Divide both sides by 4/9 (division property of equality)

d=36 ÷ (4/9)

Turn division of fraction into multiplication of its reciprocal

d=36 × (9/4)

Simplify

d=81

Hope this helps!! :)

Please let me know if you have any question

Answer:

109.09090909% increase

Step-by-step explanation:

Take the new amount and subtract the original amount

23-11 = 12

Divide by the original amount

12/11

1.09090909

Change to percent form

109.09090909%

Answer:

Its would be the second one

Step-by-step explanation:

Because 2x2x2x2 is 16 then 16x16x16 is 4096

Answer:

6xy^2=3x(2y²)    common factor 3x

25a³b²=5a²b²(5a)

6x+6y+6p = 6(x+y+p)

Answer:

0 is the answer

Step-by-step explanation:

The position of point P is at 0 on number line.

What is Number line?

Number line is a straight line with numbers placed at equal intervals.

Given that;

Point C is located at -4.

Point D is located at 6.

Now,

Distance between points -4 and 6 is,

6 - (-4) = 6 + 4 = 10

Since, Point P be located so that the directed line segment from C to D will be partitioned in a 2 : 3.

Let partitions are 2x and 3x.

Then,

2x + 3x = 10

5x = 10

x = 2

So, The partitions between point C and D is,

2x = 2 × 2 = 4

3x = 3 × 2 = 6

So, The ratio become = 4 : 6

Thus, Position of point P from C = - 4 + 4 = 0

Position of point P from D = 6 - 6 = 0

So, The position of point P is at 0 on number line.

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If you subtract 11.1 from 8.3 you get 2.8

2.8 is your answer :)

Since Peru spends 8.3 and Israel spends 11.1

Subtract that and that's how many more Israel spends on the internet

Answer:

1.1      Factoring:  x2-44  

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 44 is not a square !!

Step-by-step explanation:

Answer: 4+4+1=9(e)

Step-by-step explanation: because in 4+4+1 .... the 4+1 at the end equals up to 5 so therefore the equation is basically 4+5=9 .

Answer:

the absolute value signs change the expression to:

3 ____ 2

so:

3 > 2

3 ≠ 2

Answer:

|-3| > |-2|

|-3| ≠  |-2|

Step-by-step explanation:

Answer:

844.875

Step-by-step explanation:

375.5 * 2.25= 844.875

Answer:

P = 2 / 25

Step-by-step explanation:

If we assume that the combination of green and pink means, 1 green and 1 pink, then we can say the following:

P = 1 / 25 + 1 / 25

P = 2 / 25

This is because the squares where green and pink intersect only occurs twice.

Hence, the probability is P = 2 / 25.

Cheers.

Answer:

417.084

Step-by-step explanation:

9*6.5+12*9.757+14*17.25

58.5+117.084+241.5

⇒417.084

Answer:

x = 18

Step-by-step explanation:

Solve for x:

15 (x - 20) - 21 = 6 - 3 (x + 1)

Hint: | Distribute 15 over x - 20.

15 (x - 20) = 15 x - 300:

15 x - 300 - 21 = 6 - 3 (x + 1)

Hint: | Group like terms in 15 x - 300 - 21.

Grouping like terms, 15 x - 300 - 21 = 15 x + (-300 - 21):

15 x + (-300 - 21) = 6 - 3 (x + 1)

Hint: | Evaluate -300 - 21.

-300 - 21 = -321:

15 x + -321 = 6 - 3 (x + 1)

Hint: | Distribute -3 over x + 1.

-3 (x + 1) = -3 x - 3:

15 x - 321 = -3 x - 3 + 6

Hint: | Group like terms in -3 x - 3 + 6.

Grouping like terms, -3 x - 3 + 6 = (6 - 3) - 3 x:

15 x - 321 = (6 - 3) - 3 x

Hint: | Evaluate 6 - 3.

6 - 3 = 3:

15 x - 321 = 3 - 3 x

Hint: | Move terms with x to the left hand side.

Add 3 x to both sides:

15 x + 3 x - 321 = (3 x - 3 x) + 3

Hint: | Look for the difference of two identical terms.

3 x - 3 x = 0:

15 x + 3 x - 321 = 3

Hint: | Group like terms in 15 x + 3 x - 321.

Grouping like terms, 15 x + 3 x - 321 = (15 x + 3 x) - 321:

(15 x + 3 x) - 321 = 3

Hint: | Add like terms in 15 x + 3 x.

15 x + 3 x = 18 x:

18 x - 321 = 3

Hint: | Isolate terms with x to the left hand side.

Add 321 to both sides:

18 x + (321 - 321) = 321 + 3

Hint: | Look for the difference of two identical terms.

321 - 321 = 0:

18 x = 3 + 321

Hint: | Evaluate 3 + 321.

3 + 321 = 324:

18 x = 324

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 18 x = 324 by 18:

(18 x)/18 = 324/18

Hint: | Any nonzero number divided by itself is one.

18/18 = 1:

x = 324/18

Hint: | Reduce 324/18 to lowest terms. Start by finding the GCD of 324 and 18.

The gcd of 324 and 18 is 18, so 324/18 = (18×18)/(18×1) = 18/18×18 = 18:

Answer: x = 18

Answer:

its called a Domain

Step-by-step explanation:

All of the x-values or inputs are called Domain.

"x-values" is the word used in mathematics and statistics to describe the input values or independent variables in a function or equation.

These x-values stand for a function's inputs, arguments, or the points at which a mathematical connection is being assessed.

The outputs or dependent variables of a function are represented by the appropriate y-values, which are often paired with the associated x-values. The link between the independent and dependent variables can be seen on a graph by plotting the x-values and y-values together as data points.

For example, in the equation y = 2x + 3, "x" represents the x-values or inputs, while "y" represents the corresponding y-values or outputs. By substituting different values for x, you can calculate the corresponding y-values and observe how changes in the x-values affect the relationship described by the equation.

Hence the answer is Domain.

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Answer:

[tex]q=33[/tex]

Step-by-step explanation:

So we have:

[tex]3=\frac{q}{11}[/tex]

Multiply both sides by 11:

[tex]11(3)=(11)\frac{q}{11}[/tex]

The right side cancels:

[tex]11(3)=q[/tex]

Multiply the left:

[tex]33=q[/tex]

Thus, the value of q is 33.

Answer:

q = 33

Step-by-step explanation:

3 = q/11 multiply both side by 11

3 * 11 = [tex]\frac{q}{11}[/tex] * 11

33 = q

Answer:

[tex]\huge \boxed{11x^2 y^3-4xy^2 }[/tex]

Step-by-step explanation:

[tex](4x^2y^3 + 2xy^2 - 2y) - (-7x^2 y^3 + 6xy^2 -2y)[/tex]

Distribute the negative sign to the terms in the bracket.

[tex](4x^2y^3 + 2xy^2 - 2y) +7x^2 y^3 - 6xy^2 +2y[/tex]

Grouping like terms.

[tex](4x^2y^3 +7x^2 y^3) + (2xy^2 - 6xy^2 ) +( - 2y +2y)[/tex]

Combining like terms.

[tex](11x^2 y^3) + (-4xy^2 ) +(0)[/tex]

[tex]11x^2 y^3-4xy^2[/tex]

Answer:

D The reasonable range contains only positive rational numbers greater than 75.

Step-by-step explanation:

Given that the function f(x) = 2.5x + 75 is used to model the cost of renting billboard space depending on the area, in square feet, of the billboard, x, and including a standard layout fee.

The f(x) is the range of the function. If the mathematical range for the function is the set of real numbers, the reasonable range will be set of positive real numbers which will therefore greater than 75.

Option D is the correct answer which says;

D The reasonable range contains only positive rational numbers greater than 75.

Answer:

d

Step-by-step explanation:

Answer:

[tex]x=21\textdegree[/tex]

Step-by-step explanation:

So we know that:

[tex]\angle A=3x-30 \text{ and}\\\angle B=2x-9[/tex]

And that the two angles are vertical angles.

Since they are vertical angles, their measurements are equivalent. Thus, to find x, set the equations equal to each other:

[tex]\angle A=\angle B\\(3x-30)=(2x-9)[/tex]

Now, solve for x. Add 30 to both sides. The left side cancels:

[tex](3x-30)+30=(2x-9)+30\\3x=2x+21[/tex]

Now, subtract 2x from both sides. The right cancels:

[tex](3x)-2x=(2x+21)-2x\\x=21[/tex]

Thus, the value of x is 21.

Answer:

He has $17.9 now

Answer:

The correct option is;

Up, rotate 90 degrees counterclockwise, down and right, rotate 90 derees clockwise, left

Step-by-step explanation:

The motion of the shape are

1) The shape is moved up from the initial position

2) The shape is then rotated 90 degrees in the reverse direction of the motion of the clock

3) The shape then moves two motion of coming down and moving right in one step

4) The shape is then rotated 90 degrees in the clockwise direction

5) In the final step, the shape is moved left.

Answer: it’s greater than the negative square root of 7

Step-by-step explanation:

The negative square root of 7 is -2.64575131106 hope this helps

Answer:

(-8, 7); x + y = 13 → y= -x + 13

parallel lines have the same slope. slope is -1

y = -x + b

7 = -(-8) + b

7 = 8 + b

b = -1

(a) y = -x - 1

perpendicular lines have opposite slopes. slope is 1/2.

y = -1/2x + b

7 = -1/2(-8) + b

7 = 4 + b

b = 3

(b) y = -1/2x + 3

I don't know but I'll tell you as soon as I find out

Answer: 5000

Step-by-step explanation:

Answer:

y+7=[tex]-\frac{2}{3}[/tex](x-1)

Step-by-step explanation:

slope of -2/3, so m=-2/3

point slope form=y-[tex]y_{1}[/tex]=m(x-[tex]x_{1}[/tex])

plug in your slope as well as your x and y values from your point

y-(-7)=(-2/3)(x-1)

y+7=[tex]-\frac{2}{3}[/tex](x-1)

Answer:

2x^2x(x^+3x-2)

Step-by-step explanation:

Answer:

No clue how to use this app but it says ur in highschool and I'm in middle and stuck on the same problem

Step-by-step explanation:

Answer: This was confusing, but I think I get it.? Your answer is 800,000

Step-by-step explanation: 80,000 x 10 = 800,000