Mathematics Middle School

Britney, a professional golfer, had an average score last season of 80 points. This season, her average score has been 76 points. What is the percent of decrease in Britney's average score

Answers

Answer 1

Answer:

5%

Step-by-step explanation:

make a proportion

80/100 = 76/x

Related Questions

A cylinder has a height of 13 feet and a radius of 11 feet. What is its volume? Use a ~ 3.14
and round your answer to the nearest hundredth.

Answers

Answer:

4939.22 feet cubed.  

Step-by-step explanation:

The formula for the volume of a cylinder is V=3.14*r^2*h

First we square the raidus, which is 11 in this problem.  11 squared is 121.

Next we multiply everything together.

3.14*121 is 379.94.  Then, 379.94 * the height, which is 13, is 4939.22.

Since our answer is already rounded to the nearest hundredth, the answer to this problem is 4939.22

A bakery had 3 dozen eggs. The baker made 3 batches of cookies. Each batch required 3/4 dozen eggs. What fraction of a dozen eggs
remained?

Answers

Baker had 36 eggs
Baker made 3 batches of cookies
Each batch required 9 eggs
9 eggs x 3 batches =27
36-27=9
9eggs out of the dozen
=3/4 dozen eggs remaining
So one way you can do it is to multiply 12 by 3/4 which equals 9. Then you can multiply 9 by three since one dozen is 12. So once you multiply 9 by three you get your answer.

Find the surface area of the prism.

Answers

Answer:

5×3 =15

15×4=60

3×3=9

9×2=18

60+18=78

Find the measure of each angle.

10x - 20=
7x + 4

Answers

Answer:x=8 so 60 for both aswers

Step-by-step explanation:10x-7x = 4+20 -> 3x=24 -> x=8

Guy on the top is cap
First one -200
Second one 28

What is the area of a circle with a radius of 21 cm?
Group of answer choices
4348.08 cm2

1289.12 cm2

1384.74 cm2

Answers

Answer:

1384.74cm squared

Step-by-step explanation:

A= πr²

last one 1384.74 jajajajajajaja

Yall what is 10+9x please help thanks shawty

Answers

Answer:

19x I believe

Step-by-step explanation:

Added 10 and 9, left the x

Answer:

10+9x can't be combined to make a number

Step-by-step explanation:

This is because the 10 doesn't have the variable x so we can't combine them together

If the 10 had an x beside it, it would've become 19x, but it doesn't so it stays as is

Sorry if this is incorrect!!!!!

Bella was here :)

Please help me with this question

Answers

Answer:

56 and 7 its going by 5

Step-by-step explanation:

it is what it is yes ma’am

An algebraic expression that contains three terms is called?
Monomial
Binomial
Trinomial
None of these
























































































(Free po,,ints)

Answers

Trinomial

Step-by-step explanation:

T[tex]ri \: means \: three.[/tex]

Answer:

My father

Step-by-step explanation:

1. Say hi

2. Say hello

3. Be polite

4. Be humble

5. Now you got money from you father

I need to find the area. (please help me quick & the answer and explanation plz) POINTS: 15! please give real answers!!!!

Answers

Answer: 12.9

Step-by-step explanation:

lThe area of the triangles is 3/2 x 2.6 = 3.9/2 = 1.95. since there is 2 triangle do 1.95 x 2 = 3.9. and the area of the square is 3x3 = 9. All in all, 3.9 + 9 = 12.9.

Gl with that game

What is the surface area of the figure? Use 3.14 for π.

847.8 cm 2

2,402.1 cm 2

3,108.6 cm 2

12,717 cm 2

Answers

Answer:

Option 3

Step-by-step explanation:

We want to work out the surface-area

This is a cylinder and the formula for the surface area of a cylinder is :

2πrh+2πr^2

^ means to the power of

The radius is 15

The length is 18

2(3.14)(15)(18) + 2(3.14){15}^2

Part 1:

(6.28)(15)(18)

(6.28)(270)

1695.6

Part 2:

First, we do the exponents,

15^2 = 225

(6.28)(225)

1413

Part 3:

1695.6 + 1413 = 3108.6

Answer: 3108.6

Hope this helps :)

Answer 847.8cm2 because first you have to multiply 18 by 15 to get 270 then multiply 270 by 3.14 to get 847.8cm2

The area of a circle is 111.6 square centimeters. What is a diameter? Use 4.1 for ℼ. PLEASEEEE HURRYYY

Answers

Answer:

Step-by-step explanation:

Area is + 111.6 square meters

Formula : A/ 3.14 / 2

111.6 / 3.14 = 35.54

35.54 is the radius so multiply by 2 to get diameter .

35.54 / 2 = 17.77

Hope that’s right:)

create an equation for a third function that has a greater rate of change than one function but a smaller rate of change than the other function / please help!

Answers

Answer:

[tex]f(x)=x+5[/tex]

Step-by-step explanation:

The rate of change (slope) is 1 which is more than function 2 and less than function 1

Answer:

f(x) = x+5

Step-by-step explanation:

PLEASE ANSWER NO LINKS PLEASE

Answers

kailenakelly is cancelled!!

solve -8 = 1.3m - 2.1m

Answers

Answer:

sd sad a

Step-by-step explanation:

Answer: M=10.
-8=-0.8m
-8/0.8=m
10=m
m=10

Hi please help me with this questions and don’t post a virus link or your getting reported

Answers

Answer:

Step-by-step explanation:

I would help, but I don't get the picture.

And it already show you the answer, which is 40 = p.

7th grade math plsssssss help

Answers

Answer:

64

Step-by-step explanation:

length(l)=8cm

breadth(b)=2cm

height(h)=4cm

volume=l×b×h

=8cm×2cm×4cm

=64cm³

PLZZZZZZZZZ HELP MEE

Answers

Everytime your X goes up by 1, your Y goes up by 4

making the space between 6 and 14 = 10

the exponential factor equation would look something like this

g(x)=3^x

meaning every time x goes up by 1, your exponential factor gets multiplied by 3, making 14y have an exponential factor of 1.

what the dude above me said

Caroline is making a triangular flag with a base of 10 feet and a height of 8 feet. What is the area of the frame? What does the equation look like when you substitute values for the variables in the formula?

Answers

Answer:

40

Step-by-step explanation:

40 because I am smart

Identifying Triangle Congruence​​

Answers

I'm not sure but I think if so

1 SAS

2 SSS

3 SAS

7 SAS

8 SSS

9 SAS

10 AAS

11 SSS

The answer above is correct. I am almost positive.

ANSWER BOTH PLEASE ASAP (middle school) (probability)
WILL GIVE BRAINLIEST

Answers

The first answer is it has a 1/2 chance landing on heads or tails (%50)

Answer:

the first one is 50%

the second one would be 20% i think sorry if its wrong:(

Step-by-step explanation:

PLEASE HELP ANSWER ASAP NO LINKS PLZ

Answers

Answer:

X = 14

Step-by-step explanation:

For me, I did was add 12 and 16 which equals 28 then I divide it by the 2 sides and that how I got my answer

Hope it helps

Mk, i don’t know if this is hundred percent correct. Alright so, first add 12 and 16. Those two numbers equal 28. Every triangle equals 180, so if you subtract 28 from 180 that equals 156. The missing X is 156! Sorry if the explanation is kinda bad. My english isn’t very good. Also, if you need your answer to be rounded to the nearest tenth, it will be 160. Hope this helps!

which of the following are zeros in the equation x (x - 3)(x + 6)(x - 7) = 0

Answers

Answer:

The given polynomial x(x -3)(x +6)(x -7)= 0 is of degree 4. Therefore, it has 4 zeros as follows. So, x = 3 is the second zero. So, x = -6 is the third zero.

Step-by-step explanation:

I think the answer is x^3+3x^2-18x

Help me answer this question!!!!!

Answers

Answer:

0

Step-by-step explanation:

The answer is 0 hope it helps

Please solve; x³+y³+z³=k

Answers

Answer:

It's called a Diophantine Equation, and it's sometimes known as the “summing of three cubes”: Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100. One answer is x = 1, y = -1, and z = 2.

Step-by-step explanation:

Two angles are complementary. One angle is 52°.
How many degrees is the other angle?
Geometry

Answers

Answer:

you are correct :)

Step-by-step explanation:

complementary angels equal 90 degrees so you do 90-52

supplementary angels on the other hand, equal 180 degrees

It is 38° because complementary is 90° so 90° - 52° = 38°
Good Job!

Please evaluate the expression below.

Select the answer with BOTH correct answers (the quotient in Scientific Notation and the quotient in standard form).

(3.5×10^9)÷(2.04×10^−2)

A) 1.71568627451×10^11;171,568,627,451

B) 1.7156863×10^7;17,156,863

C) 1.72×10^2;172

D) 1.72×10^−2;.0172

Answers

Answer:

scientific notation: 1.71568627×10^11

Step-by-step explanation:

look up math-way and click on the calculator if that is not what you are looking for :)

c 1.72×10^2;172 homie

Landon used a half circle and a square to form the figure shown. Which is the best estimate of the area of the figure in square meters?
A 138 m²
B 175 m²
C 125 m²
D 75 m²

Answers

138 is best estimate. The half circle is smaller than half a square so it cant be more than 150.
138 is the best possible answer

What is the value of x and the measure of ∠DBC, respectively?

A. x = 3; ∠DBC = 9
B. x = 36; ∠DBC = 108
C. x = 18; ∠DBC = 36
D. x = 18; ∠DBC = 54

Answers

Answer:

Hmm i don't know is A B C D

CBA should be hmm 90 degrees I think

Then you should be able to calculate

it's so easy

Step-by-step explanation:

Answer:

D. x = 18; ∠DBC = 54

Step-by-step explanation:

m∠ABD + m∠CBD = 90°

2x + 3x = 90°

5x = 90°

x = 18°

m∠DBC = 3x

m∠DBC = 3(18°)

m∠DMC = 54°

please help asapppp!!! i have a "f" in my math classssss!!!!!!!

Answers

Answer:

Let x = # of hours Sophia spends ironing shirts

Let y = # of hours London spends ironing shirts

Equations: x + y = 11 and 40x + 25y= 365

Step-by-step explanation:

If Sophia and London worked a combined 11 hours, then one of our equations is : x + y = 11

They also note that Sophia and London both ironed 365 shirts, and Sophia irons 40 shirts per hour while London can iron 25 shirts per hour. Our next equation is : 40x + 25y= 365

Save me from this nightmare of a content that I have to question

Answers

Answer:

It would be A

Step-by-step explanation:

2,320÷120

Hoped this helped! lmk!!

Answer:

C. 97

Step-by-step explanation:

What if did was:

2,320/120 = approx. 19

19 • 5

97

Hopefully this is correct! Good luck

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