During a sale, a dress is marked down from a selling price of $80 to $72.

What is the percent mark down?

Answer:

Step-by-step explanation:

We are given

[tex]X + Y = 47\\and\\Y = X + 9\\\\use \: substitution\\X + (X + 9) = 47[/tex]

Answer: x+(x+9)

Step-by-step explanation:

Answer:

4 btw lovinggg the M !!!!!

Step-by-step explanation:

Answer:

Undefined

Step-by-step explanation:

To find slope, you need the difference of y over the difference of x.

For example, let's use (-8,8) and (-8,3).

Difference of y: 8-3

Difference of x: -8-(-8) (Note that the order of the x values must be the same as the order of the corresponding y values of the coordinate)

(8-3)/(-8+8)

= 5/0

Now, we see that we have to divide by 0, except it's impossible to divide by 0, so the slope is left as undefined.

Answer:

the answer is 357

Step-by-step explanation:

350 + 440 + 400 = 1190

30% of 1190 = 357

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Answer:

9940

Step-by-step explanation:

its easy please give brainlist

Answer:

~10525.41 after 7 years

Step-by-step explanation:

y=a(1+r)^x

That's the equation for exponential growth

a= the starting amount

r= the rate at which it is growing

x=years

with that information

a=7000

r=6% or 0.06

so y=7000(1+0.06)^x -> y=7000(1.06)^x

x=7

y=7000(1.06)^7

y~10525.41

Taylor can clean 625 pools in 25 hours

If Taylor can clean pools at a constant rate of 25 pools per hour, this is expressed as:

25 pools = 1hour

We are to calculate the number of pools that Taylor can clean in 25 hours, this is expressed as;

x = 25 hours

Divide both expressions

25/x = 1/25

x = 25 * 25

x = 625 pools

Hence Taylor can clean 625 pools in 25 hours

Learn more here: https://brainly.com/question/19195829

Answer:

1) Yes because the slope, 10x, is constant

2) Yes for every 1 hour of baby sitting $10 dollars is earned.

Consider Brainliest!

Answer:

yes

Step-by-step explanation:

Answer:

bla bla bal bala bla bla bla bla hahahahhahahahhhehehhehehehheheh joke png

Answer:

try 3 i need 20 more letters

Answer:

f(x) = 2x^2 + 12x +10

Step by step solution:

x = 1 x = 5 y = 10

f(x) = a(x+1)(x+5)

f(0) = a(1)(5) = 10

5a = 10

Divide by 5

a = 2

f(x)= 2(x+1)(x+5)

f(x) = 2(x^2 +6x +5)

f(x) = 2x^2 + 12x +10

brainliest much appreciated!

Answer:

Then make one

Step-by-step explanation:

Answer: I believe it would be 8.

Step-by-step explanation:

Answer:

The length of the base will be: 17 m

Step-by-step explanation:

Given the area of the triangle

[tex]A=102\:m^2[/tex]

Using the formula of Area of a triangle:

[tex]A=\frac{1}{2}\left(b\times h\right)[/tex]

Here,

As the base of a triangle is 7 less than twice its height.

so

[tex]b=2h-7[/tex]

so the formula of Area of a triangle becomes

[tex]102=\frac{1}{2}\left(\left(2h-7\right)\times \:h\right)[/tex]

[tex]204=h\left(2h-7\right)[/tex]

[tex]2h^2-7h=204[/tex]

[tex]2h^2-7h-204=0[/tex]

[tex]\left(2h+17\right)\left(h-12\right)=0[/tex]

[tex]2h+17=0\quad \mathrm{or}\quad \:h-12=0[/tex]

[tex]h=-\frac{17}{2},\:h=12[/tex]

As height can not be negative, so:

[tex]h=12[/tex] m

Hence, the length of the base:

[tex]b=2h-7[/tex]

   [tex]= 2(12)-7[/tex]

    [tex]=24-7[/tex]

     [tex]= 17[/tex] m

Therefore, the length of the base will be: 17 m

Answer:

x=14

Step-by-step explanation:

Hope This Helps!

Answer:

x = 22/3, x=14

Step-by-step explanation:

Start by isolating whatever is in the absolute value sign; in this case divide either side by 4

4|1-3/4x + 7| =10,

-----------------   ----

        4            4

|1-3/4x + 7| = 10/4 = 5/2,

now if we apply the absolute value rule we know that 1-3/4x + 7 will be equal to -5/2, and 5/2

1-3/4x + 7 = 5/2 and 1-3/4x + 7 = -5/2

-3/4x + 8 = 5/2,

-3/4x=5/2-8,

-3/4x = 5/2-16/2,

-3/4x = -11/2,

x = -11/2*-4/3 = 44/6 = 22/3

-3/4x+8 = -5/2

-3/4x = -5/2-8

-3/4x = -5/2-16/2

-3/4x = -21/2

x = -21/2*-4/3 = 82/6 = 14

Answer:

-30/7 = x

Step-by-step explanation:

im guessing u mean (3x+5)/(2x+7) = 5

3x+5 = 5(2x+7)

3x+5=10x+35

-7x=30

x=  -30/7

Statement 1:  2AB = AC

Reason 1: Given

--------------------------------------------

Statement 2:  AC = AB+BC

Reason 2: Segment addition postulate (which your teacher abbreviated to "Seg + Post")

--------------------------------------------

Statement 3: 2AB = AB+BC

Reason 3: Substitution

--------------------------------------------

Statement 4:  2AB-AB = AB+BC-AB

Reason 4: Subtraction Property of Equality

---------------------------------------------

Statement 5: AB = BC

Reason 5: Combine like terms

----------------------------------------------

Notes:

Answer:

B. Yes, 3.5

Step-by-step explanation:

Proportional Variables

Two variables x,y are proportional if one of them can be calculated as the other variable time a fixed constant:

y = k.x

Or, equivalently:

k = y/x

k is called the constant of proportionality.

The table gives three points: (13,45.5) (14,49) (15,52.5)

To find out if the values correspond to a proportional relationship, we find the value of k for each pair:

k = 45.5 / 13 = 3.5

k = 49 / 14 = 3.5

k = 52.5 / 15 = 3.5

Since the value of k is the same for all the points, we conclude the table shows a direct proportional relationship and the constant of proportionality is 3.5

Answer:

23.0625 or 23 13/200

Step-by-step explanation:

97 1/2 - 74 7/16 = 23.065 or 23 13/200

Fun fact: The heaviest salmon caught is actually 97 pounds!

If you found this helpful, please give me brainliest. Thanks!

Answer:

x=8

Step-by-step explanation:

hope i helped!!!

Answer:

61°

Step-by-step explanation:

180-58=122

122÷2=61

Answer:

3:5

Step-by-step explanation:

3, 6, 9.

5, 10, 15.

always see which numbers fit and which numbers dont

Answer:

9:24 is the ratio.

Step-by-step explanation:

Answer:

15 feet off the ground

Step-by-step explanation:

Hope this helps!

Answer:18

Step-by-step explanation:

1.5 times 12 =18

Answer:

30 percent off 89.00 is 62.30

Answer:

x= 2

Step-by-step explanation:

y = 7 means it is parallel to the x axis . so the perpendicular line is to be parallel yo the y axis. .

so the equation is to be like x = c

but it is passing (2,13)

so the equation is

x= 2

Answer:

Liters

Step-by-step explanation:

Every recipient that has a volume of liquid in it,you mesure it in liters!

Step-by-step explanation:

7/5(1/7)(-10)

=(1/5)(-10)

=-2

Answer:

The answer is 46.

Step-by-step explanation:

First, you will have to add up both functions in order to find the new expression for (g + f)(a) :

g(a) + f(a) = (g + f)(a)

(g + f)(a) = 3a + 3 + 2a - 2

(g + f)(a) = 5a + 1

Next, you have to substitute a = 9 into the function :

(g + f)(9) = 5(9) + 1

(g + f)(9) = 46

Answer:

there are uncountable turning points in polynomial funcatiin

Answer:

you can also get the most of the best Friend in suluiman .70.

Answer:

5 days

Step-by-step explanation:

The question above is modeled by the equation :

150 − 8x = 170 − 12x.

After how many days will both have ye same amount :

Number of days = x

Collect like terms

-8x + 12x = 170 - 150

4x = 20

x = 20/4

x = 5 days

The boys will have the same amount in their account after 5 days.

Answer:

its 2/5

Step-by-step explanation:

-7/9 x 2/5 = -14/45

Answer:

14.45/7.9=1.82...this is your answer

Answer:

Option c) [tex]0.25[/tex]

Step-by-step explanation:

[tex]p(red \cap truck) = p(red) \times p(truck)[/tex] ([tex]truck[/tex] is referring to pickup truck)

[tex]0.06=p(red) \times 0.24[/tex] (given that the probability of a red pickup truck is 0.06 and the probability of a pickup truck is 0.24)

[tex]p(red)=0.06\div0.24[/tex]

[tex]p(red)=0.25[/tex]

∴ The probability that a vehicle is red is [tex]0.25[/tex].

Hope this helps :)