Solve for a: 3a+4bc-d=5a-8j

If ^ was meant to be multiplication, the answer would be -159.

Answer:

The Answer is: -116

(sorry I'm 3 years late...)

Step-by-step explanation:

the sum or product of  21+25+39+5 is 90

Answer: 75 customers

Step-by-step explanation:

hey! so for this question you have to cross multiply and divide.

1/12 = 900/1 so 1 times 900 is 900 then divide that by 12 which is 75.

Hope this helps!!

do -45 times 5, and you will get -225

(a)

Let's assume

y is total cost

x is number of ride tickets

(b)

Since, this is linear relationship

so, we can assume equation as

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

The Fall Festival charges $0.75 per ticket for the rides

so,

[tex]m=0.75[/tex]

we can plug it

[tex]y=0.75x+b[/tex]

Kendall bought 18 tickets for rides and spent a total of $33.50 at the festival

so, we have

at x=18 , y=33.50

we can use it to find b

[tex]33.5=0.75*18+b[/tex]

now, we can solve for b

[tex]b=20[/tex]

we can plug it back

and we get

[tex]y=0.75x+20[/tex]

(c)

we got

[tex]y=0.75x+20[/tex]

here ,

y is the cost for anyone who only pays for festival admission and rides

x is number of admission

so, our equation will give total cost

20x

in mathematics ' product ' means multiply

4 × 5x = 20x

Answer:

The artist's earnings for the CD will be $168000.

Step-by-step explanation:

The total sales amount is $2500000

The artist receives a royalty payment of 7%. So, the amount of royalty, the artist receives will be:  [tex](\$2500000\times 7\%)= (\$2500000\times 0.07)=\$175000[/tex]

The agent gets 4% of what the recording artist gets. So, the amount of money the agent gets will be:  [tex](\$175000\times 4\%)=(\$175000\times 0.04)=\$7000[/tex]

So, the artist’s earnings for the CD will be:  [tex](\$175000-\$7000)= \$168000[/tex]

Okay for this problem you can multiply 6 by 4.5 aand get 27 as your answer.

So 6×4.5=27 miles in 4.5 hours

We need to graph a function and use that graph to estimate how many miles lava moves in 4.5 hours.

The graph and estimations can be seen at the end of the answer.

Let's see how to graph this:

We know that the function is y= 6*x

What we need to do, is find two points in the that belong to the line, to get that, we need to evaluate the function in two points:

if x = 0:

y = 6*0 = 0

Then we have the point (0, 0)

if x = 1:

y = 6*1 = 6

Then we have the point (1, 6)

Now to graph the function, we just need to find these two points and draw a line that connects them.

A graph is shown at the end of the answer.

To estimate the distance that the lava has moved in 4.5 hours, we need to find the value 4.5 in the x-axis, then we draw a vertical line that passes through there.

In the point where this vertical line intersects the graph, we draw a horizontal line.

That horizontal line will intersect the y-axis in the correspondent y-value to x = 4.5

An example of this can be seen in the image below, my estimation is that the lava has moved something near 26 miles.

If you want to learn more, you can read:

https://brainly.com/question/20853486

Answer:

The volunteers donated  [tex](15040-470n)[/tex] milliliters of blood.

Step-by-step explanation:

Total number of volunteers was 32 and the number of volunteers couldn't donate blood was [tex]n[/tex].

So, the number of remaining volunteers who donated blood will be: [tex](32-n)[/tex]

Each of these volunteers donated 470 milliliters blood.

So, the total amount of blood donated [tex]= 470(32-n) = (15040-470n)[/tex] milliliters.

Answer:

Answer: The answer to this problem would be (32-n)*470!

Step-by-step explanation:

Since there were 32 volunteers the beginning and some of them couldn't donate you would subtract (the variable you would use is 'n'). As you may know, each means that you multiply so if each volunteer is giving 470 mm of blood each you would multiply that by how many volunteers are remaining which is unknown.

Your final answer would be: (32-n)*470

Hope this helps and gets Brainiest Answer!!!

Step-by-step explanation:

3+4+5.

You could split it into different groups because of the communative property.

These are two combonations. :) (I'll put 3 so you can chose)

3 + 4 = 7 + 5 = 12.

3 + 7 = 10 + 4 = 14

7 + 4 = 11 + 3 = 14

To determine if it’s a right triangle you would use the Pythagorean theorem. A^2+B^2=C^2 <——- That’s the equation. So you have to know that the hypotenuse(c) is always the longest side. 28^2+45^2=53^2. So yes it is a right triangle.

A perpendicular line has the negative reciprocal slope of the given line.

The slope of the given line is x/2, which can be written as 1/2x

The negative reciprocal of 1/2 would be -2

The equation for a line is written as y = mx +b, where m is the slope and b is the y-intercept.

We already have the slope ( -2)

So we can solve for b by replacing y x and m with the slope and the point given:

8 = -2(1) +b

8 = -2 + b

b = 10

The equation would be y = -2x + 10

The formula of a midpoint:

[tex]M_{ST}\left(\dfrac{x_S+x_T}{2},\ \dfrac{y_S+y_T}{2}\right)[/tex]

We have:

[tex]M(5,\ -8)\to x_M=5,\ y_M=-8\\T(4,\ -6)\to x_T=4,\ y_T=-6[/tex]

Substitute:

[tex]\dfrac{x_S+4}{2}=5\qquad|\cdot2\\\\x_S+4=10\qquad|-4\\\\x_S=6\\\\\dfrac{y_S+(-6)}{2}=-8\qquad|\cdot2\\\\y_S-6=-16\qquad|+6\\\\y_S=-10[/tex]

Given

end of one day, the value of a share of a certain stock was $12

next three days

the change in the value of the share was -$1, then, -$1, and then $3

ANSWER

proof of (a)

As given  in the question

end of one day, the value of a share of a certain stock = $12

next three days

change in the value of the share was -$1, then, -$1, and then $3

The expression that describes the situation be

= $12 - $1 -$1 + $3

proof of  (b)

The expression that describes the situation be

= $12 - $1 -$1 + $3

solving the above expression

we get

= $13

proof of c

The answer to part b mean in context of the problem is ,

The value of a share of a certain stock  was  $12 at one day end and after the next three days, the change in the value of the share was -$1, t, -$1, $3 than the value of share becomes $13.

Hence proved

8) h(x) = 2 -4x

h(-5)= 2-4(-5)= 2 + 20 =22

h(-2) = 2 - 4 (-2) = 2+8=10

h (4) = 2 - 4 (4) = 2 - 16 = -14

10) g(x) = |x-x^2|

g(4) = | 4 - 4 ^2| =|4-16|=|-12|=12

g(-7)=|-7 - (-7)^2|=|-7-49|=|-56|=56

g(-3)=|-3-(-3)^2|=|-3-9|=|-12|=12

[tex]\bf 3x+(2x+5)+(2x+10)+(2x-15)=360 \\\\\\\\3x+2x+2x+2x+10+5-15=360\implies 9x+0=360\\\\\\\\x=\cfrac{360}{9}\implies x=40\\[/tex]

Any fraction in which the numerator's value is the same as the denominator's value will equal 1. For example:

7/7, 6/6, 500/500, etc.

~Rise Above the Ordinary

Here are some examples 3/3, 4/4, 5/5, 1/1, 2/2, 6/6. It's any number over it self.

The point-slope formula:

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

We have a slope m = 2 and point (-8, 2)

Substitute:

[tex]y-2=2(x-(-8))\\\\y-2=2(x+8)[/tex]

Answer:

The overall change in temperature over the time period ∆T = -12.6°F

Hope This Helps :DD

Step-by-step explanation:

Answer: [tex]y=1.6x+6.8[/tex]

Step-by-step explanation:

1. The equation of a regression line has the following form:

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

Where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.

2. You need to calculate the slope with the points given in the exercise:

[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

3. Substitute values:

[tex]m=\frac{18-10}{7-2}[/tex]

[tex]m=\frac{8}{5}=1.6[/tex]

4. Now, you must calculate [tex]b[/tex]:

-Substitute the value of the slope into the equation above.

- Take one of the given points and substitute them into the equation.

Then:

[tex]y=mx+b\\10=(1.6)(2)+b\\b=10-3.2\\b=6.8[/tex]

5. Therefore, the equation is:

[tex]y=1.6x+6.8[/tex]

Answer:

x-36

Step-by-step explanation:

1x-36 has a coefficient of 1,so it can be shown as the term :

The equation of the line parallel to the line y = -7x + 2 will be -

y = - 7x - 3.

Given is the equation of line as y = -7x + 2.

        y = mx + c

The equation of line parallel to the given line will be of the form -

y = - 7x + c                                               {parallel lines have same slope}

For the point (- 5, 32), we can write -

32 = - 7 x - 5 + c

c = 32 - 35

c = - 3                                                       {y - intercept}

The equation of the line will be -

y = - 7x - 3

Therefore, the equation of the line parallel to the line y = - 7x + 2 will be -

y = - 7x - 3.

To solve more questions on algebraic expressions, visit the link below -

brainly.com/question/1041084

#SPJ5

Speed = Distance /  time:

Speed = 825 miles / 17 hours

Speed = 48.529 miles per hour. (Round the answer as needed).

Gas mileage = miles traveled  / gallons used

Gas mileage = 825 miles / 38 gallons = 21.71 miles per gallon (Round answer as needed).

Unit rate of gas = Total money spend /  gallons bought:

Unit rate of gas = $125 / 38 gallons = $3.289 per gallon.

Answer:

[tex]Speed = 48.53mph[/tex]

[tex]Gas.Mileage = 27.7 mpg[/tex]

[tex]Unit.Price = 3.29/gallon[/tex]

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

In order to find the Speed we need to divide the amount of total miles in the trip to California by the amount of time that it took.

[tex]Speed = \frac{Miles}{Hours}[/tex]

[tex]Speed = \frac{825.miles}{17.hours}[/tex]

[tex]Speed = 48.53mph[/tex]

Next we can calculate the Gas Mileage by dividing the amount of total miles  by the amount of gallons of gas that the trip wasted.

[tex]Gas.Mileage = \frac{Miles}{Gallon}[/tex]

[tex]Gas.Mileage = \frac{825.miles}{38.gallons}[/tex]

[tex]Gas.Mileage = 27.7 mpg[/tex]

Finally, we can calculate the Unit Price by dividing the total amount of money wasted in the trip by the amount of gallons used in that trip.

[tex]Unit.Price = \frac{Total}{Gallons}[/tex]

[tex]Unit.Price = \frac{125}{38.gallons}[/tex]

[tex]Unit.Price = 3.29/gallon[/tex]

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

3/4 * 4 = 3 miles in 4 days. you can look at it as a decimal/money to to help 3/4 is .75 and .75+.75+.75+.75=3.00 hope it helps and explains how to get the answer.

Answer:

c is correct thank you

Step-by-step explanation:

got it correct on edg.

The  equation of the circle shown in the graph will be (x - 3)² + (y)² = 4

The standard equation of a circle is given as:

(x - a)² + (y- b)² = r²

where:

(a, b) is the centre

r is the radius of the circle

Assume the centre of the circle is (3, 0) and the radius of 2

Substitute to have:

(x - 3)² + (y-0)² = 2²

(x - 3)² + (y)² = 4

Hence the  equation of the circle shown in the graph will be (x - 3)² + (y)² = 4

Learn more on equation of a circle here: https://brainly.com/question/1320758

After figuring out the sum of 7+5, you can subtract the 6, leaving you with the number that will make the two equal.

7+5=x+6

12=x+6

-6     -6

6=x

7+5=6+6

1·x-x/1     1·x=x

=x-x/1      x/1=x

=x-x

=0

1·x-x/1=0

Answer:

Your answer is 0

Step-by-step explanation:

1 times x and x/1 are the reciprocals of each other and when something is multiplied by its reciprocal the product is always 0

Substitute the 4 and -3 for m and n in the expression.

3m+9÷n

3(4)+9÷(-3)

Using the rules of PEMDAS, first multiply/divide, then add.

12+9÷(-3)

12+(-3)

9

The final answer is 9.

.57 times 100=  57. you moe the decimal 2 places to the right