Brian has 250 coins in his piggy bank. Some of the coins are quarters and the rest are nickels. If the total value of the coins is $28.70, find the number of nickels in the piggy bank.

the area of the trapezoid is 64

90+31.5x2 = 153

153 units squared is the area of the trapezoid.

Answer:

The answer is C.

Step-by-step explanation:

Think about it as substitution.

The equation given to you is 15n=10.

They are telling you that n is equal to 2/3.

So now, this is where you do the substitution.

1. Substitute 2/3 in for n.

  15(2/3)=10

2. Determine if true.

  15·2/3=10

3. Are they the same?

  10=10

So now you know your answer is C. :)

Hey there!

We know that each slice has 280 calories & we also know there are 6 equal pieces, so all we have to do is multiply 280 by 6 to find how many calories the entire pie is

280 * 6 = 1,680

Therefore, the whole pie has 1,680 calories

Hope this helps you!

God bless ❤️

xXxGolferGirlxXx

Answer:

nh,juk,

Step-by-step explanation:

hfjmdgbtjutrj

Answer:

(9,13)

Step-by-step explanation:

A solution to an equation is a point (x,y) which makes the equation true.

y = x + 4

Substitute each point to determine if a solution.

(0,0) ----> 0 = 4 No

(5, 54) ----> 54 = 9 No

(7,28) -----> 28 = 11 No

(9,13) ----> 13 = 13 YES

Answer: A: 1/6

Step-by-step explanation:

3/6 + 2/6 = 5/6

1 - 5/6 = 1/6

Answer:

Option C

Step-by-step explanation:

We can easily see the solution by realizing that the quadratic function

y = x^2 + 2 has a discontinuity at x =1 (white dot at the graph)

So, the solution must have

y = x^2 + 2  , x < 1

And the only option in which this applies is Option C.

Answer:

Step-by-step explanation:

(x, y)

Reflection of a Point in x-axis: (-x, y)

Reflection of a Point in y-axis: (x, -y)

Reflection of a Point in origin: (-x, -y)

We have the point X(5, 4).

Therefore

the new coordinates of the point X in reflection across y-axis is (-5, 4).

Answer:

a.) (-5,4)

Step-by-step explanation:

(x, y)

Reflection of a Point in x-axis: (-x, y)

Reflection of a Point in y-axis: (x, -y)

Reflection of a Point in origin: (-x, -y)

We have the point X(5, 4).

Therefore

the new coordinates of the point X in reflection across y-axis is (-5, 4).

Answer:

[tex]y = -\frac{1}{3}x - 5[/tex]

Step-by-step explanation:

To write the equation of a line use the point slope formula [tex]y - y_1 = m(x-x_1)[/tex]. Find m by using the slope formula with the points.

[tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{1--3}{-5-7} =\frac{4}{-12} =-\frac{1}{3}[/tex]

Since the line is parallel, it will have the same slope.

Substitute m = -1/3 and (-3,-4).

[tex]y --4 = -\frac{1}{3}(x --3)\\y + 4 = -\frac{1}{3}(x+3)\\y +4 = -\frac{1}{3}x - 1\\y = -\frac{1}{3}x - 5[/tex]

Final answer:

The equation of the line that passes through the point (-3, -4) and is parallel to a given line is y = -1/3x - 5. This is found by calculating the slope of the given line and then using the point-slope form to find the equation for the parallel line.

Explanation:

The student has asked for the equation of a line that passes through point
(-3, -4) and is parallel to another line. First, we need to find the slope of the given line that passes through points (-5, 1) and (7, -3). The slope (m) is calculated by using the difference in y-coordinates over the difference in x-coordinates (rise over run), which is:

m = (y2 - y1) / (x2 - x1) = (-3 - 1) / (7 - (-5))

m = (-4) / (12) = -1/3

Since parallel lines have the same slope, our new line will also have a slope of -1/3. Using the point-slope form of a line's equation, y - y1 = m(x - x1), and substituting the point (-3, -4) and the slope -1/3, we get the equation of the parallel line:

y - (-4) = -1/3(x - (-3))

y + 4 = -1/3(x + 3)

To write it in slope-intercept form (y = mx + b), we distribute the slope and simplify:

y + 4 = -1/3x - 1

y = -1/3x - 5

Therefore, the equation of the line parallel to the given line and passing through the point (-3, -4) is y = -1/3x - 5.

Answer:

Part A) The percentage increase was [tex]6.1\%[/tex]

Part B) Michael is financially better off this year than last year

Step-by-step explanation:

Part A)

we know that

Using proportion

Let

x-----> the percentage increase

[tex]\frac{100\%}{33,000}=\frac{x\%}{35,000-33,000}\\ \\x=2,000*100\%/33,000\\ \\x=6.1\%[/tex]

Part B) Compare the percentage increase with the inflation

[tex]6.1\%>5\%[/tex]

The percentage increase is greater than the inflation

therefore

Michael is financially better off this year than last year

Answer:

[tex]10\ inches[/tex]

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

Let

x----> the height of cone B

using proportion

[tex]\frac{3}{2}=\frac{15}{x} \\ \\x=2*15/3\\ \\x=10\ in[/tex]

Answer:

10x = (5)(8)

10x = 40

x = 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Top left hand corner 6 x 2 = 12

Top right 4x6/2= 12

Bottom left 2 squared + 2x6 = 28

Bottom right 6 squared / (4 + 6 ) = 3.6

Answer:

3 1/4 = 325%

or

31/4ths = 775%

whichever is your intended fraction

Step-by-step explanation:

9514 1404 393

Answer:

  1400 km/hour to the east

Step-by-step explanation:

We assume the jet is flying directly toward US airspace, so is flying east. The speed is ...

  speed = distance/time

  speed = ((8400 km)/3)/(2 h) = 1400 km/h

The jet's velocity is 1400 km per hour to the east.

Final answer:

The velocity of the supersonic jet traveling one-third of the way to U.S. airspace is 1400 km/h to the east, calculated by dividing the distance covered (2800 km) by the time taken (2 hours).

Explanation:

The supersonic jet's velocity can be determined by calculating the distance it flew and the time taken to cover that distance. The jet started 8400 km west of U.S. airspace and flew one-third of that distance, which is 2800 km (8400 km / 3). It took 2 hours for the jet to cover this distance. So, to find the velocity, we use the formula velocity = distance / time.

V = 2800 km / 2 hours = 1400 km/h to the east.

Answer:

5 2/7

Step-by-step explanation:

Answer:

5 2/7

Step-by-step explanation:

Subtract the fractions. 4/7 - 2/7 = 2/7.

Then, subtract 8 - 3 = 5.

The total is 5 2/7.

Answer:

11, 13 and 15.

Step-by-step explanation:

Let's say that the odd number is "x". If x is for example 15, then the next ODD number would be 15+2=17 and the one after that would be 15+2+2=15+4=19.

Applying that here, we get:

Odd number* the next odd number*the next odd number=2145

x*(x+2)*(x+4)=2145

x*(x^2+4x+2x+8)=2145

x^3+6x^2+8x=2145

By solving the polynomial, you get x=11.

Which makes our three numbers: 11, 13 and 15.

11*13*15=2145. The answer checks.

Final answer:

To find the three consecutive odd numbers whose product is 2,145, set up and solve an equation for n, the first odd number. The solution is n = 11, so the three consecutive odd numbers are 11, 13, and 15.

Explanation:

To find the three consecutive odd numbers whose product is 2,145, we can set up an equation and solve for n, the first odd number:

Let n be the first odd number

Then, the next two consecutive odd numbers would be n + 2 and n + 4

We can write the equation as: n x (n + 2) x (n + 4) = 2,145

Expanding this equation, we have: n³ + 6n² + 8n - 2,145 = 0

By factoring or using a numerical method, we can find that n = 11

So, the three consecutive odd numbers are 11, 13, and 15.

A real life use of Surface area is when we need to figure out how much paint is needed to paint something. Paint can only cover so much surface area so we must figure out Surface area before it is painted.

Another example is in fashion when making clothes. You need to know the surface area of fabric so that there is enough cloth to fit a model and make a garment.

Answer:

Finding the area of a yard/centimeter.

Step-by-step explanation:

A house or let's say a building can be used as an example.

How to find the answer:

You would times length times width. (Up and bottom) Decimal or not, you would get your answer.

Answer:

The answer is C.

Step-by-step explanation:

To solve this problem, first do the calculations (twice per equation | example below.

6 x 8 x 2 = 96

8 x 11 x 2 = 176

6 x 11 x 2 = 132

Then, add of your products together to find your answer (example below).

132 + 176 + 96 = 404

Therefore, C is the answer.

Answer: 2/33 hoped this helped you

Step-by-step explanation:

The probability that Lucia picks a red marble first and a white marble second from the bag without replacement is

2 / 33, found by multiplying the individual probabilities of each event. Hence option C is correct.

The question asks about the probability that Lucia randomly picks a red marble first and a white marble second from a bag containing marbles of various colors, without replacement. To calculate this probability, we need to consider the total number of marbles and the number of favorable outcomes for both events happening consecutively.

With 4 red and 2 white marbles in the bag, the probability of picking a red marble first is

P(Red) = Number of red marbles / Total number of marbles

P(Red) = 4 / 12 = 1 / 3

After picking a red marble, there are 11 marbles left, including 2 white marbles. The probability of then picking a white marble is

P(White | Red) = Number of white marbles / Total number of marbles remaining

P(White | Red) = 2 / 11

The combined probability is then the product of the two individual probabilities:

P(Red and White) = P(Red) X P(White | Red)

P(Red and White) = (4 / 12) X (2 / 11)

P(Red and White) = 8 / 132 =  2 / 33.

Thus, the correct answer is 2 / 33, which corresponds to option C.

Answer:

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x^2 + 2x + 3 or A is the correct answer

Answer:

[tex]4\frac{2}{3}[/tex]

Step-by-step explanation:

This is a recurring decimal.

Let x = 4.666666...                 ⇒ (1)

  10x = 46.66666...                     ⇒ (2)

Subtract equation (1) from equation (2)

    10x = 46.66666..

   -  x = 4.666666...  

     9x = 42.0000.....

9x = 42

  x =  42/9

      = 14/3

       =[tex]4\frac{2}{3}[/tex]

Answer:

-6x^2+4x

Step-by-step explanation

Plug in values!!!!!

Answeron:

Du plus gras au plus sec : 9b - 8b - 7b - 6b - 5b - 4b - 3b - 2b - B - HB - F - H - 2h - 3h - 4h - 5h - 6h - 7h - 8h - 9h

The correct option is D.

The difference between the longest and shortest pencils is **7 inches**.

The difference between the measurements of the longest and shortest pencils can be calculated based on the given data. Let's break it down:

1. **Line Plot 1**: The longest pencil measures **7 inches**, and the shortest pencil is **[tex]$2 \frac{1}{2}$[/tex] inches** long. The difference is:

  [tex]\[7 \text{ in} - 2 \frac{1}{2} \text{ in} = 4 \frac{1}{2} \text{ inches}\][/tex]

2. **Line Plot 2**: The longest pencil measures **7 inches**, and the shortest pencil is **[tex]$2 \frac{1}{4}$[/tex] inches** long. The difference is:

  [tex]\[7 \text{ in} - 2 \frac{1}{4} \text{ in} = 4 \frac{3}{4} \text{ inches}\][/tex]

3. **Line Plot 3**: The longest pencil measures **7 inches**, and the shortest pencil is **[tex]$2 \frac{3}{8}$[/tex] inches** long. The difference is:

  [tex]\[7 \text{ in} - 2 \frac{3}{8} \text{ in} = 4 \frac{5}{8} \text{ inches}\][/tex]

Therefore, the differences are as follows:

- Line Plot 1: **[tex]$4 \frac{1}{2}$[/tex] inches**

- Line Plot 2: **[tex]$4 \frac{3}{4}$[/tex] inches**

- Line Plot 3: **[tex]$4 \frac{5}{8}$[/tex] inches**

Based on this information, the correct answer is **D. 7 inches**.

The complete question is here:

What is the difference between the length of the longest pencil and the shortest pencil?

A. [tex]$1 \frac{1}{2}$[/tex] inches

B. 3 inches

C. [tex]$3 \frac{1}{2}$[/tex] inches

D. 7 inches

Answer:

160 cm^2

Step-by-step explanation:

The shaded area is the triangle with a base of 20 and a height of 16, I take it.

Area = 1/2 b* h

Area = 1/2 * 20 * 16

Area = 160 cm^2

Answer:

160 cm2

Step-by-step explanation:

I took this test. Hope this helps!

Answer:

A, B, and D

Step-by-step explanation:

Only the functions that have x by itself between the absolute value signs (A, B, and D) are symmetric with respect to the y-axis .

Placing a constant outside the absolute value signs moves the function up or down the y-axis but retains the symmetry.

Adding a constant inside the absolute value signs (as in C and E) moves the axis of symmetry to the left or right of the y-axis.

In the diagram, both A and B are symmetric with respect to the y-axis, but C has been shifted three units to the left.

Answer:

First, you have to calculate the angles.

3x-2 + 4x +2x -12  + 2x  + 3x + 10

14x -4 = 360

14x = 364

x = 26

So, the angles are:

3x -2 = 76

4x = 104

2x -12 = 40

2x = 52

3x + 10 = 88

Step-by-step explanation:

Answer:

I decided to draw it since you didnt provide a pic.....

so here:

Step-by-step explanation:

STEPS:

–x ≥ 4

÷-1       ÷-1

x ≤ -4

Final answer:

The solution set for the inequality -x ≥ 4 is x ≤ -4. On a number line, this is represented by a solid dot at -4 and a line extending to the left.

Explanation:

To find the number line that represents the solution set for the inequality
-u2061x
≥ 4, we first need to solve the inequality for x. By dividing each side of the inequality by -1 (and remembering to flip the inequality sign because we're dividing by a negative number), we get x
≤ -4. This means all numbers less than or equal to -4 are part of the solution set.

On a number line, this would be represented by a solid dot at -4 (to include -4 itself) and a line extending to the left to indicate all numbers less than -4 are included.

Answer:

D) Gross Income

Your answer is D gross

income