.
Charlie has 6 more quarters than dimes in a jar and a total of $9.20. Which system of
equations can be used to determine the number of each type of coin Charlie has if
q=the number of quarters and d = the number of dimes?

Answer:

4 ways i think

Step-by-step explanation:

Hope this helps!

Answer:

its 20

Step-by-step explanation:

hope this helps

Answer: The answer is 18 feet

Answer:

17

Step-by-step explanation:

5/50= x/170 multiply 5x170 divide that answer by 50. or bc u know that 5x10 = 50 u could divide 170 by 10 and still get 17

Answer:

17

Step-by-step explanation:

 17 because they write five checks each  50 minutes so it means that every 10 minutes on the check is created incel I went  50 +50+50 =150 And you can't add another 50 so than in 20 minutes to checks can be made and then so I made the conclusion that there can be 17 checks made

hope this helps :)

Answer:

23

Step-by-step explanation:

230/10=23

since it got deleted last time -_-

Answer:

question 2 answer. option. a. 55

Step-by-step explanation:

diameter of semi circular window is 35 inches

the radius is 17.5

perimeter of semicircular window =pie x radius

= 22 /7 ×17.5

=55 inches

Answer:They are all Less Than

Step-by-step explanation:

Answer:

2x^2+x-3

Step-by-step explanation:

Answer:

2x² + x - 3

Step-by-step explanation:

You need to foil the equation.

Foil = (a + b)(c + d) = ac + ad + bc + bd

(x - 1)(2x + 3)

x · 2x = 2x²

x · 3 = 3x

-1 · 2x = -2x

-1 · 3 = -3

Putting them together gets us:

2x² + 3x - 2x - 3

Add like terms to simplify it.

2x² + x - 3

2627828818182-718818288281-288181991_2792901=72892992

Answer:

[tex](10x - 3a)(3x + 39)(5x - 3) = 0 \\ dealing \: with \: (10x - 3a) \: and \: (5x - 3) \\ (10x - 3a)(5x - 3) = 0 \\ 50 {x}^{2} - (30 + 15a)x + 9a = 0 \\ sum \: of \: the \: equation \: = (30 + 15a) = - 1 \\ 15a = - 31 \\ a = - \frac{31}{15} [/tex]

Answer:

x^2 + 16x + 32

Step-by-step explanation:

I am going to guess this is from factoring.

In which you need to x's multiplied together to get x^2. So you have:

(x+?) (x+?)

to get 16x you need two 8x's in your factoring square. so it would be

(x+8) (x+8)

Now you found out what you were mulitpling together, then you solve. The final part is multiplying 8 by 8, which is 32.

Ikr its so- ion even have words

IM DEADDDDDDDDDDDDDDDDDDDDDDDDDDDD

Answer:

a) [tex]\mathbf{ f(g(x))=x+2\sqrt{x} +1}[/tex]

b) [tex]\mathbf{f(g(9))=16}[/tex]

Step-by-step explanation:

We are given:

[tex]f(x)=(x-2)^2\\g(x)=\sqrt{x} +3[/tex]

We need to find  [tex]a) f(g(x))\\b) f(g(9))[/tex]

a) First finding: [tex]f(g(x))[/tex]

It can be found by putting the value of g(x) into f(x)

We are given:

[tex]f(x)=(x-2)^2\\Put\:x=g(x)\:i.e. \: x= \sqrt{x} +3\\f(g(x))=(\sqrt{x} +3-2)^2\\Now\: solving:\\f(g(x))=(\sqrt{x} +1)^2\\Using\:formula\:\mathbf{(a+b)^2=a^2+2ab+b^2}\\f(g(x))=(\sqrt{x})^2+2(\sqrt{x} )(1)+(1)^2\\ f(g(x))=x+2\sqrt{x} +1[/tex]

SO, we get: [tex]\mathbf{ f(g(x))=x+2\sqrt{x} +1}[/tex]

b) Now finding: [tex]f(g(9))[/tex]

It can be found by putting x=9 in f(g(x))

We have:

[tex]f(g(x))=x+2\sqrt{x} +1\\Put\:x=9\\f(g(9))=9+2\sqrt{9}+1\\We\:know\: \sqrt{9}=3\\ f(g(9))=9+2(3)+1\\f(g(9))=9+6+1\\f(g(9))=16[/tex]

So, we get: [tex]\mathbf{f(g(9))=16}[/tex]

Answer:

-1/10

Step-by-step explanation:

Let's solve your equation step-by-step.

5x=−1/2

Step 1: Simplify both sides of the equation.

5x= -1/2

Step 2: Divide both sides by 5.

5x/5 = -1/2/5

x=-1/10

Answer:

$8.98

Step-by-step explanation:

3.59+3.59+1.80

Answer:

8. 95

Step-by-step explanation:

The last equation 37 + 58 can be best solved by solving it vertically.  Put 37 and 58 side to side vertically to add easier on a piece of paper.  The first digit answer is 15, carry the 1 to the second digit and add it with 3 and 5.  Your final answer should be 95.

The property that you should use is the Associative Property where you can switch the numbers to put the larger number on top and the smaller number on the bottom.  No matter how it is changed, you should get the right answer.

Answer:

8. 95

Step-by-step explanation:

Answer:

305.68

Step-by-step explanation:

π = 3.14(aka pi)

d=diameter

h=height

^=exponent

The formula for doing this types of problem is 2π d/2h + 2π(d/2)^2. So all you do is fill in the diameter and height of the variable.

2π 7/2(10.4) + 2π(7/2)^2=305.68

Hope this was helpful, if not deeply sorry, I'm only in 7th grade...

Answer:

a, b, and d

Step-by-step explanation:

you can have the same output, but not the same input

Answer: a, b, d

Step-by-step explanation:

the x values (input values) CANNOT be the same in a set of coordinates; if they do have the same x values, then the are not a function.

both c and e have some of the same x values so they can't pass the vertical line test and therefore are not functions.

hope this helps!!

Answer:

10cm^2

Step-by-step explanation:

The parallel sides of a parallelogram is 2cm apart

Their sum is 10cm

Therefore the area can be calculated as follows

= 2 ×10/2

= 20/2

= 10 cm^2

Hence the area is 10cm^2

Answer:

(g - f) - 4

Step-by-step explanation:

Subtract f from g = g - f

Subtract 4 from the result = (g- f) - 4

Answer:

hello world

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.1368771e+40 this is your answer

Step-by-step explanation:

Given that,

A gray crayon is made with 5 mL of black wax for every 6 mL of white wax.

We need to find the mixture will create the same shade of gray.

For this we need to make the ratio same.

If we multiply 5 mL and 6 mL by 3 to make the ratio same.

5 mL × 3 = 15 mL

6 mL × 3 = 18 mL

Hence, 15 mL of black wax mixed with 18 mL of white wax  is mixed so as to make the ratio same.

Answer:

15ml of black wax mixed with 18ml of white wax

35ml of black wax mixed with 42ml of white wax

Step-by-step explanation: Khan Academy

Answer: y = 20*4^x

Step-by-step explanation:to find the value of the constants a and b, we just need to use the points given in the equation and solve the system of equations:

point (0,20): x = 0 and y = 20:

20 = a*b^0 = a*1 = a

a = 20

point (2,320): x = 2 and y = 320

320 = 20 * b^2

b^2 = 16

|b| = 4

b = 4 or b = -4

So we have two exponencial equations that pass through these points:

y = 20*4^x and y = 20*(-4)^x

As the questions asks for just one equation, we can answer y = 20*4^xIf you have two points, (x1, y1) and (x2, y2), you can define the exponential ... these points by substituting them in the equation y = abx and solving for a and b. ... In this form, the math looks a little complicated, but it looks less so after you ... Taking 1910 as the starting point, this gives the pair of points (0, 1.75) and (100, 6.87). which well turn out to be y=6(4)^x

Answer:

sorry bro I didn't understand

Answer:

B . 980 just trust me

Step-by-step explanation:

You set up proportions

Answer:

The equation is;

y = 2x^2 -8x + 12

Step-by-step explanation:

The vertex form can be written as;

a(x-h)^2 + k

(h,k) represents the coordinates of the vertex

In this case, we have this as (2,4)

The value of a is positive as the parabola opens up and it is the axis of symmetry

It is the x value that divides the graph into 2

Thus, we have x as = 2

so the equation of the graph will be;

2(x-2)^2 + 4

2(x^2 - 4x + 4) + 4

= 2x^2 -8x + 8 + 4

= 2x^2 -8x + 12

Answer:

It's okay my brain doesn't work some days, too.

1. x = -7

2. x = -6

3. x = -1

4. y = 4

Step-by-step explanation:

1. Simply subtract equal and opposite values from positive values and do the same on both sides. Divide the final x value by its coefficient to get 1x = -7

2. Do the same as above AFTER distributing the 4(5 - x)

3. Once again, distribute all values then combine like terms like #1

4. This one uses a fraction to distribute, but it is just like dividing the number by 3 instead of multiplying (6/3 instead of 6 * 3)

Hope I helped!

Answer:

X is greater than or equal too 4

Step-by-step explanation:

The circle on 4 was not shaded so {x>4}

Answer:

The answer is 12. Hope this helped :-)

Step-by-step explanation:

60% of 20

6.2=12

Answer:

The equation a parallel line will be:

[tex]y=\frac{4}{3}x-9[/tex]

Hence, option B is correct.

Step-by-step explanation:

Given the equation

[tex]8x-6y=7[/tex]

Writing the line into the slope-intercept form

[tex]y = mx+b[/tex]

where m is the slope and b is the y-intercept

so

[tex]8x-6y=7[/tex]

[tex]6y\:=\:8x-7[/tex]

Dividing both sides by 6

[tex]y=\frac{4}{3}x-\frac{7}{6}[/tex]

comparing with the slope-intercept form

Thus, the slope of the line = m = 4/3

We know that the parallel lines have the same slope.

Thus, the slope of the parallel line is also 4/3

Using the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where m is the slope of the line and (x₁, y₁) is the point

substituting the values m = 4/3 and the point (6, -1)

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-1\right)=\frac{4}{3}\left(x-6\right)[/tex]

[tex]y+1=\frac{4}{3}\left(x-6\right)[/tex]

Subtract  1 from both sides

[tex]y+1-1=\frac{4}{3}\left(x-6\right)-1[/tex]

[tex]y=\frac{4}{3}x-9[/tex]

Thus, the equation a parallel line will be:

[tex]y=\frac{4}{3}x-9[/tex]

Hence, option B is correct.