The price of a dress was reduced from $40 to $30. By what percentage was the price of the dress reduced? STEP BY STEP

Answer:

15

Step-by-step explanation:

140x(3/4)=105 went to sport club

105x(1/7)=15 went to sport club and art club

Answer:

306

Step-by-step explanation:

Answer:

the answer is 306 but the distributive property is not needed for this problem

Answer:

Use the given functions to set up and simplify  (2y+3)−5xy+7x

x =

(2y+3)−5xy+7x=−5xy+7x+2y+3

Answer:

The Answer is 1655.

Thanks

Answer:

4m

Step-by-step explanation:

First subtract:

9m-7m=2m

Then add:

2m+2m= 4m

Hope this helps!

Pls mark brainliest if correct:)

The percentage error in the deer population is 17%

Actual population = 21300

Estimated population = 17600

The percentage error will be calculated by subtracting the estimated population from the actual population and then dividing the result. This will be:

= (Actual population - Estimated population) / Actual population × 100

= (21300 - 17600) / 21300 × 100

= 3700/21300 × 100

= 0.17 × 100

= 17%

Therefore, the percentage error in the deer population is 17%

Read related link on:

https://brainly.com/question/24988697

Answer:

-3

Step-by-step explanation:

Answer:

C x = 10  Q = 50

Step-by-step explanation:

supplemantary means adds to 180 deg.

so 130 + 5x = 180

5x = 50 = ang. Q

x = 50/5 = 10 deg.

Answer:

-25

Step-by-step explanation:

Using formula for nth term,

a11=a+10d.

Herea is −3 and d is −2, hence

a11=−3+10(−2)=−25

Answer:

slope = - [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

2x + 3y = - 12 ( subtract 2x from both sides )

3y = - 2x - 12 ( divide all terms by 3 )

y = - [tex]\frac{2}{3}[/tex] x - 4 ← in slope- intercept form

with slope m = - [tex]\frac{2}{3}[/tex]

Answer:

basketball game tickets: $7.25;

football game tickets: $6.50

Step-by-step explanation:

Let B represent the cost of a basketball ticket and F represent the cost of a football ticket.

Amount for basketball ticket plus amount for football tickets equal the total cost.

4B + 5F = 61.50

5B + 3F = 55.75

Choose one equation in the system to solve for a variable.

Solve the first equation for F.

4B + 5F = 61.50  

5F = −4B + 61.50  Subtract 4B from both sides.

F = −0.8B + 12.30  Divide both sides by 5.

Substitute the expression −0.8B + 12.30 for F in the other equation.

5B + 3F = 55.75  

5B + 3(−0.8B + 12.30) = 55.75  Substitute.

5B − 2.4B + 36.90 = 55.75  Distribute.

2.6B + 36.90 = 55.75  Combine like terms.

2.6B = 18.85  Subtract 36.90 from both sides.

B = 7.25  Divide both sides by 2.6.

Substitute the B-value into one of the original equations to solve for F.

4B + 5F = 61.50  

4(7.25) + 5F = 61.50  Substitute.

29 + 5F = 61.50  Multiply.

5F = 32.50  Subtract 29 from both sides.

F = 6.50  Divide both sides by 5.

The cost of a basketball ticket is $7.25, and the cost of a football ticket is $6.50.

The cost of basketball game tickets is $7.15 and football game ticket is $6.5

Let the cost of a basketball game ticket be x

Let the cost of football game ticket be y

If 4 basketball game tickets and 5 football game tickets were purchased for $61.50, hence;

4x + 5y = 61.50 ..................1

If  5 basketball game tickets and 3 football game tickets were purchased for $55.75, hence;

5x + 3y = 55.75 ...........................2

Solving 1 and 2 simultaneously

4x + 5y = 61.50 ..................1 * 3

5x + 3y = 55.75 ...........................2 * 5

_________________________________

12x + 15y = 184.5

25x + 15y = 278.75

Subtract

12x - 25x = 184.5 - 278.75

-13x = -94.25

x = 7.25

Substitute x = 7.25 into equation 1:

From 1:

4x + 5y = 61.50

4(7.25) + 5y = 61.50

29 + 5y = 61.50

5y = 61.50 -29

5y = 32.5

y = 32,5/5

y = 6.5

Hence the cost of basketball game tickets is $7.15 and football game ticket is $6.5

Learn more here:

https://brainly.com/question/15165519

Answer: y+7 = 2(x-4)

Step-by-step explanation: Point slope form is y − y1 = m(x − x1), where m is the slope and (x1,y1) is one known point on the line.  We are told that m= 2 and (4,-7).  Therefore:

(y − (-7)) = 2(x − (4))

y+7 = 2(x-4)

Answer:

15) 55°

16) 90°

Step-by-step explanation:

15)

55° + 75° + x = 180°

x = 50°

___

50° + 60° + x = 180°

x = 70°

__

70° + 55° + ? = 180°

? = 55°

______________________________

16)

55° + 90° + x = 180°

x = 35°

__

35° + x = 90°

x = 55°

___

55° + 35° + ? = 180°

? = 90°

You can cross multiply for this problem. So:

[tex]\frac{6}{10}=\frac{21}{K}\\6K=210\\K=35[/tex]

So K=35!

Hope this helps! :)

Answer:

The answer to your problem is -10

Answer:

X=7

Step-by-step explanation:

These are supplementary angles. So they measure to 180º. 180º-95º=85º. 85º-10= 84º. 84º÷12x= 7.

Answer:

12x+1°+95°=180° (int angles)

12x+96°=180°

12x=180°-96°

=84°

x=84÷12

=7

Answer:

x^3+4x^2+5x+2

Step-by-step explanation:

Answer:

do 36+23+33 out of 130 then you find the answer

Answer:

the first first one is it can be written as a fraction this is the decimel that doesn't repeat nor terminates

Answer:

No ingles

Step-by-step explanation:

Sorry not sorry

Answer:

see below

Step-by-step explanation:

1.25 rounded to the nearest tenth : 1.3

2.784 rounded to the nearest hundredth : 2.78

Answer:

The slope of the line is 1.8, or 1 4/5.

Step-by-step explanation:

This is right, trust me.

Answer:

BC = 20

Step-by-step explanation:

Since B is the midpoint of AC , then

AB = BC = [tex]\frac{1}{2}[/tex] AC = [tex]\frac{1}{2}[/tex] × 40 = 20

Answer:

The sum is even :p

Step-by-step explanation:

[tex]\frac{(80+1)80}{2}[/tex]=3240

3240 is even so the parity of the sum of 80 consecutive natural numbers is even!

Answer:

120 cans of soda were sold

Step-by-step explanation:

Sally's Soda company makes $1.20 for each can of soda sold out of a machine. If the company makes $144, how many

cans of soda were sold?

144 ÷ 1.20 = cans sold

144 ÷ 1.20 = 120

check your work

120 x 1.20 = 144

Answer:

D = x >/ -4

R = 2

Step-by-step explanation: