2. I want to send out 25 Chitstmas cards so I will need 25 stamps. Each stamp cost $0.55; SO how much will I spend on stamps?​

Answer:

a= -11

b= -1/5

c= 3 1/8

Step-by-step explanation:

a- a negative plus a negative always equal a negative

Answer:

a. -11

b. -1/5

c. -25/8

Step-by-step explanation:

a. -5 - 6

= -11

b. 2/5 - 3/5

= 1/5

c. -4(1/4) - ( 1(1/8))

= -17/4 - 9/8

= -34/8 - 9/8

= -25/8

Answer:

1.25 (2 decimal places)

Step-by-step explanation:

Divide the ounces by 35.274

Answer:

store one

Step-by-step explanation:

Store One:

$720(0.50)=$360

$720-$360=$360

Store Two:

$720(0.30)=$216

$720-$216=$504

$504(0.20)=$100.8

$504-$100.8=$403.2

Answer:

$616 in debt

Step-by-step explanation:

5.5% is equal to 0.055 so you multiply that by $1400 to get $77.

$77 is the interest rate.

You then multiply $77 by 8 months.

Answer:

.00009494949

Step-by-step explanation:

this may be wrong

Answer: I believe it’s 300

Step-by-step explanation:

Answer:

Step by step in image below. Hope this helps

Step-by-step explanation:

Answer:

4%

Step-by-step explanation:

I added a screenshot of work, hopefully this helps you!

The difference in the percentage of concert attendees and expected attendees for both nights combined is 4%.

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

Given that,

Number of  audience attendants on the first and second night = 6,000

Let's say the excepted number of the audience on the first night was x then,

20% higher than x ⇒

1.2x = 6000

x = 5000

Error = 6000 - 5000 = 1000

Let's say  the excepted number of the audience on the second night was x then,

20% lower than x ⇒

0.8x = 6000

x = 7500

Error = 7500 - 6000 = 1500

Combined expectation = 5000 + 7500 = 12500

Percentage = (1500 - 1000)/12500

Percentage = 0.04 → 4%

Hence "The difference in the percentage of concert attendees and expected attendees for both nights combined is 4%".

For more about the percentage,

brainly.com/question/13450942

#SPJ2

Answer:

25

Step-by-step explanation:

percentage calculator 40 is what percent of 160=25;)

Answer:

40/100×160

Step-by-step explanation:

2/5×160

320/5

64

Answer:

Use cross product to determine if the two ratios form a proportion. Here we can see that 2/16 and 5/40 are proportions since their cross products are equal. Percent means hundredths or per hundred and is written with the symbol, %. Percent is a ratio were we compare numbers to 100 which means that 1% is 1/100.

Step-by-step explanation:

Answer:

f(x) = [tex]\frac{-h(x) + 7}{4}[/tex]

Step-by-step explanation:

h(x) is defined by the formula,

h(x) = -4f(x) + 7

If the graph attached is of the function 'h' and we have to find the function 'f',

h(x) - 7 = -4f(x)

4.f(x) = -h(x) + 7

f(x) = [tex]\frac{-h(x) + 7}{4}[/tex]

Therefore, function 'f' will be defined by,

f(x) = [tex]\frac{-h(x) + 7}{4}[/tex]

Answer:

A) y = 13x

B) Slope is 13, intercept is 0

Step-by-step explanation:

Answer:

y = 13x

The slope is 13

The y intercept is 0

Step-by-step explanation:

Since he gets $13 per hour, his pay can be represented by 13x, as x is the number of hours.

To create the equation, set this equal to y, as it represents his total pay.

So, the equation is y = 13x.

Using the equation y = mx + b, we can find the slope (m) and the y intercept (b)

Since this equation has 13 as the coefficient, the slope is 13. There is also no b value since nothing is being added to 13x, so the y intercept is 0.

Answer:

Solution graph is attached in the answer area.

And one possible solution is (9, 2).

9 number of dimes and 2 number of nickels.

Step-by-step explanation:

Given that:

Number of dimes = [tex]a[/tex]

Number of nickels = [tex]y[/tex]

Total number of coins are at most 12 OR total number of coins are lesser than or equal to 12.

i.e. the inequality can be written as:

[tex]a+y \leq 12[/tex] ...... (1)

One dime is worth 10 cents or $0.10.

[tex]a[/tex] number of dimes are worth $0.10[tex]a[/tex].

One nickel is worth 5 cents or $0.05.

[tex]y[/tex] number of nickels are worth $0.05[tex]y[/tex].

Second inequality can be written as:

[tex]0.10a + 0.05 \ge 0.85[/tex]

OR

[tex]2a+y\ge17[/tex] ...... (2)

[tex]a \ge 0, y \ge 0[/tex] ...... (3)

When we graphically represent the inequalities, the graph attached in the answer area represents the answer.

One solution is (9, 2).

9 number of dimes and 2 number of nickels.

Answer:

x = - 0.74

Step-by-step explanation:

Answer:

$224

Step-by-step explanation:

320(0.3) =96

320-96 = 224

Answer:

The answer is $96.

Step-by-step explanation:

Use friendly precnents and do 320/10=32 then you do 20/10 3 times and then you add them together and you get the answer.

Answer: W is the correct answer just for clarification.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

You have to multiply the numerator and denominator and conjugate

Answer:

Choice 3: [tex]\sqrt{2}[/tex]

Step-by-step explanation:

The first thing is that you have to break the √10. The only way you can break it is to make it into a 5 and a √2. So now it should look like this [tex]\frac{5}{5\sqrt{2}}[/tex]. Then we will divide the 5 by 5 and that'll become 1, so we are left with a [tex]\sqrt{2}[/tex] and that's it.

Given:

The equation is

[tex]2(x+14)=40[/tex]

To find:

The solution of the given equation.

Solution:

We have,

[tex]2(x+14)=40[/tex]

Using distributive property, we get

[tex]2(x)+2(14)=40[/tex]

[tex]2x+28=40[/tex]

Subtracting 28 from both sides.

[tex]2x=40-28[/tex]

[tex]2x=12[/tex]

On dividing both sides by 2, we get

[tex]x=6[/tex]

Therefore, the solution of the given equation is x = 6.

Answer:

j = 6

Step-by-step explanation:

1. What one needs to know

-Slope-intercept form

The formula of a line in slope-intercept form is;

y = mx + b

Where "m" is the slope. and "b" is the y-intercept.

2. Approach

The slope of the line is given. One has to solve for the y-intercept. Since a point on the line is given, one simply has to substitute in the point on the line and solve for b. The one substitutes in the other point with the unknown in it. One will then solve to find the unknown.

3. Finding "b"

It is given that this line has a slope of [tex]\frac{1}{5}[/tex], therefore, the equation of the line with the slope would look something like this;

y = [tex]\frac{1}{5}[/tex]x  + b

It is given that (-4, -8) is on the line, substitute this point in;

-8 = [tex]\frac{1}{5}[/tex](-4) + b

Solve;

-8 = [tex]\frac{1}{5}[/tex](-4) + b

-8 = - 0.8 + b

-7.2 = b

The complete formula of this line is;

y = 0.2(x) - 7.2

( in decimals )

4. Solve of "j"

Point (j, -6) is on this line, substitute it into the formula

y = 0.2(x) - 7.2

-6 = 0.2(j) - 7.2

Inverse operations;

-6 = 0.2(j) - 7.2

+7.2          +7.2

1.2 = 0.2(j)

/0.2   /0.2

6 = j

Answer:

25.731% increase

Step-by-step explanation:

(V2−V1)|V1|×100

=(2.15−1.71)|1.71|×100

=0.441.71×100

=0.25731×100

=25.731%change

=25.731%increase

Answer:

.44=44%

Step-by-step explanation:

just subtract both numbers and you get how much they added but then again it depends so my answer my not be right but give it a try if you like

Answer:

$109.96

Step-by-step explanation:

Using the data from the table we need to add all of the transaction amounts together in order to calculate the final balance amount at the end of the first month since all of the transactions listed in the table are from the same month. (negative values cancel out the addition and instead subtract from the total)

100 + (-12.25) + 25.82 + 14.95 + (-18.56) = 109.96

Assuming that the initial account balance at the beginning of the month was $0 then the account balance at the end of the month would be $109.96

Answer:

2

Step-by-step explanation:

The scale factor is two since it's 2 times bigger than the actual figure.

Proof:

A to B = 4 units

A' to B' = 8 units

A to C = 3 units

A' to C' = 6 units

See how it keeps multiplying by 2.

4 x 2 = 8

3 x 2 = 6.

Ace Carlos

Answer:

[tex]26[/tex]

Step-by-step explanation:

[tex]2n-6[/tex]

Given that:

[tex]n=16[/tex]

To evaluate the expression, we must simply substitute the given value of [tex]n[/tex], which is [tex]16[/tex], for [tex]n[/tex]:

[tex]2(16)-6[/tex]

Multiply:

[tex]32-6[/tex]

Subtract:

[tex]26[/tex]

-

To check your work, simply set the given expression equal to our solution, [tex]26[/tex]:

[tex]2n-6=26[/tex]

Add [tex]6[/tex] to both sides of the equation:

[tex]2n=32[/tex]

Divide both sides of the equation by the coefficient of [tex]n[/tex], which is [tex]2[/tex]:

[tex]n=16[/tex]

Since it matches the given value of [tex]n[/tex], our solution is correct!

Answer:

26

Step-by-step explanation:

This is the answer because:

1) First, we have to substitue the value that stand for n into the equation:

2(16) - 6

2) Next, we have to follow the order of operations in order to find the answer:

1. 2 x 16 = 32

2. 32 - 6 = 26

Therefore, the answer is 26.

Hope this helps! :D

Answer:

[tex]x = 6[/tex]

Step-by-step explanation:

Given

Let y represent the number of meatballs in total and x represents the number of plates.

[tex]y = 30[/tex]

[tex]Rate = 5[/tex] per plate

Required

Determine the value of x

To solve for x, we make use of the following expression.

[tex]y = Rate * x[/tex]

Substitute values for y and Rate

[tex]30 = 5 * x[/tex]

[tex]30 = 5 x[/tex]

Divide through by 5

[tex]30/5 = 5 x/5[/tex]

[tex]6 = x[/tex]

[tex]x = 6[/tex]

Hence, number of plates is 6

Answer:

The equation of the line in slope-intercept form is y = -x + 1

Step-by-step explanation:

The slope-intercept form of the linear equation is y = m x + b, where

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where

∵ f(x) = y ⇒ is the function of the set of ordered pairs (x, y)

∴ f(3) = -2 is the point (3, -2)

∴ f(0) = 1 is the point (0, 1)

∴ x1 = 3 and y1 = -2

∴ x2 = 0 and y2 = 1

→ Substitute them in the rule of the slope to find it

∵ m = [tex]\frac{1--2}{0-3}[/tex] = [tex]\frac{1+2}{-3}[/tex] = [tex]\frac{3}{-3}[/tex]

∴ m = -1

→ Substitute it in the form of the equation above

∵ y = -1(x) + b

∴ y = -x + b

∵ b is the value of y at x = 0

∵ at x = 0, y = 1

∴ b = 1

∴ y = -x + 1

∴ The equation of the line in slope-intercept form is y = -x + 1

Answer:

[tex]\boxed{x = 4~~and~~y = -2}[/tex]

Step-by-step explanation:

3x + 5y = 2 (times 5) 15x + 25y = 10

5x + 8y = 4 (times 3) 15x + 24y = 12

.

15x + 25y = 10

15x + 24y = 12    

y = -2

.

Substitute the value of y to one of equations

3x + 5y = 2

3x + 5(-2) = 2

3x - 10 = 2

3x = 2 + 10

3x = 12

[tex]x = \frac{12}{3}[/tex]

x = 4

Answer:

1 1/3 bags of chocolate chips

Step-by-step explanation:

If Alana has 2 1/4 bags of chocolate chips that she wants to use in 3 batches of chocolate chip cookies, then we can say;

2 1/4 bags of cookies = 3 batches of chips

To determine how much of the chocolate chips will she use in each batch of cookies, we can say;

1 bag of cookies = x batches of chips

Equating both expressions

2 1/4 bags of cookies = 3 batches of chips

1 bag of cookies = x batches of chips

Cross multiply

2 1/4 x = 3

9/4 x = 3

9x/4 = 3

9x = 12

x = 12/9

x = 4/3

x = 1 1/3

Hence Alana will need 1 1/3 bags of chocolate chips

Answer:

The other prson is right. Its parallelogram

Step-by-step explanation:

Answer:

I think option 3 hope it helps

Step-by-step explanation: