Mathematics Middle School

help please? :)
Serena has to choose two out of nine songs to play for her piano recital. How many combinations of two songs can she make?

36
18
34
72

Answers

Answer 1

Answer:

36 ways

Step-by-step explanation:

i just drew on a piece of paper nine songs and did the whole process of making them match and stuff :P

u welcome

Answer 2
hey thats my name!! 36 combinations!

Related Questions

3.1-r pls answer thx

Answers

Answer:

-r+3.1

Step-by-step explanation:

the variable always goes first

Answer:

-r+3.1

Step-by-step explanation:

Valuables always go first in these equations

jake will spend $87.50 for a new baseball glove. He has $75.23 in the account linked to his debit card. the bank charges a $9 pentalty fee, per day, for using his debit card to make a purchase if he doesn't have enough funds in his account. what will he pay altogether if he chooses to use his debit card and doesn't put any more money in his account for 9 days

Answers

Answer:

88.31 is you anwser

Step-by-step explanation:

Answer:

the answer is $168.50

Step-by-step explanation:

he will spend $87.50 on the glove and they will charge him 9 dollars for nine days adding up to $81.00 so in total it will add up to 168.50

WILL GIVE BRAINLEIST TO WHOEVER ANSWERS CORRECTLY

Answers

Answer:

Option 3

Step-by-step explanation:

Multiplying the x^2 always causes the opening on the parabola to get thinner. If you multiply it by a number less than 1 it will make it wider.

(3) I think I’m not that good at math but I believe it’s opinion 3

1) show the work please

Answers

to find y intercept sub in 0 for x and solve for y
ANSWER (0, 8000)

OTHER ANSWER: always increasing
Exponential growth= when it is 1 or greater
Exponential Decay= when it’s 0 or less
So therefore here our base is 1.15 so it’s EXPONENTIAL GROWTH

During a debate, Bonnie used 9 minutes to present her opinion, 6 minutes to rebut the opposing opinion, and 5 minutes to summarize.
What percent of the time did she spend summarizing?
A. 5%
B:30%
c. 45%
D. 25%
E. 15%

Answers

Answer:

25%

Step-by-step explanation:

9 + 6 + 5 = 20

she spent 5 minutes summarizing so that is 5/20

5/20 = .25

.25 x 100 = 25%

Answer:

25%

Step-by-step explanation:

Calculate the approximate area of the shape to the nearest cm2.

Answers

This is very simple. So you use two formulas:

Rectangle: Length • Width

Semicircle: Area = [tex]\frac{\pi r^2}{2}[/tex]

With that, you do 0.8 ÷ 2 = 0.4 because we will be using radius. When solved, you get 0.2512... But for this problem, I will be rounding everything to the nearest hundredths.

Area of semicircle: ≈ 0.25

Now we solve for the rectangle. That is very easy. Just multiply 0.75 • 0.8 and you get 0.6

For this problem, I'm not sure why they make you round to the nearest centimeter, but if you do, you get 1 cm. Otherwise,

Round to nearest tenth: 0.9

Round to nearest hundredths: 0.85

help me When finding the length of the hypotenuse of a right triangle, why might you approximate the answer?

Answers

Answer:

You may have to use trig functions. These are calculated with a calculator and may have several decimal points

Four runners completed in a 10-kilometer relay race. Each Runner ran the same distance. What was that distance?

Answers

Answer:

each runner ran 2.5 kilometers

Step-by-step explanation:

10÷4=2.5

The distance would be 2.5 kilometers if four runners completed a 10-kilometer relay race while covering the same distance each.

What is division?

A method of dividing something into equal parts is called division. It produces a fair distribution of resources and is one of the four basic operations in mathematics.

How to solve this problem?

Total distance = 10 kilometers

Total number of runners = 4

Since they all covered the same distance,

the distance = 10/4 = 2.5 kilometers

Therefore, the distance would be 2.5 kilometers if four runners completed a 10-kilometer relay race while covering the same distance each.

Learn more about division here -

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The probability that Tommy has his calculator for his mathematics lesson is 0.4 . There are 120 mathematics lessons in one year. Work out an estimate of the number of mathematics lessons in one year that Tommy has his calculator

Answers

i think it’s 0.48 but it could be wrong

what is the value of g ?

Answers

Answer:60.5

Step-by-step explanation:

it would be 60.5 because of the same angle measures as the first angle above it.

Pls help! ASAP!
Which word best describes the degree of overlap between the two data sets?

none

moderate

high

low

Answers

Answer:

I think the answer would be high.

Step-by-step explanation:

You can see how the X on the bottom is (13) it's one less than the X on the top. So my reasoning is since there are fewer differences b/w the two sets, there are more vaiables overlapping.

It’s high girlie!!! <3333333333333

Can u explain how to get the answer???

Answers

Answer:

Since there are 8 sections and 3 are even

We consider that 3/8

We now multiply by 120 since they said 120 times it is spun

3/8 x 120 = 45

The answer is 45.

It's hard to explain how I got the answer but I gathered the info below to help me get it.

There are 8 different sections on the wheel. 5 are odd numbers and 3 are even. 5/8 chance of getting an odd number 3/8 chance of getting an even number. The wheel is spun 120 times.

Hope this helps!

The table shows a linear relationship between the values of
Which equation represents the relationship in the in the table? ^image

Answers

Answer:

B

Step-by-step explanation:

Trust Me

B tryst trust trust trust

REWARDING BRAINLY TO CORRECT ANSWER

Answers

Answer:

x - 16 > 8 (lets solve first before we graph)

+16    +16

X > 24

Since X is greater than 24 we need to show that on the number line.

Pick the circle that is hollow,

Put the hallow circle point on 24,

Then make the arrow go to the right of 24 showing that x is greater than 24.

x- 16 > 8 have nice day :)

∴∵∴∵ What is the value of the expression 9 − [tex](1/2)^{4}[/tex] ⋅ 48? ∵∴∵∴

Answers

Answer:

The value of the given expression is 6.

Step-by-step explanation:

raise the 1/2 to the 4th power
9 - 1/16 • 48
multiply 1/16 by 48
9 - 3
subtract by 3
6

PEMDAS

Suppose you have;

g=4z+14

z=4x-42^2

what is g in terms of x

Answers

g= -16x^2 +16x + 14 (going based on the picture, not your typing)

First solve the first equation for z:
g-14=4z
(g-14)/4=z

Then plug that in for z in the second equation and solve for g:
(g-14)/4 = 4x-4x^2
g-14=16x-16x^2

g= -16x^2 +16x + 14

Kinda need help in this one.

Answers

Answer:

0.45 liters evaporated

Step-by-step explanation:

1.5 × 0.30 to find the amount that evaporated

The 0.30 comes from the 30 percent that evaporated

The answer should be 0.45

The price of a mat is x USD from the start. Write an algebraic expression for the price in the following situations:


a) After it's been reduced by 50%

b) After it's been reduced by 50% twice

c) After first being reduced by 60% and then 40%

Answers

Answer:

a) 1/2x b) 1/4x c) 0.16x

Step-by-step explanation:

Answer:

a) 1/2x b) 1/4x c) 0.16x

Step-by-step explanation:

Which of these sets is a Pythagoreah Triple?
A) 5, 8, 17
B) 21, 20, 41
C) 4,5,6
D) 64, 36, 100

Answers

Answer:

None

None of these answer choices are Pythagorean Triples

For B 21 and 20 are I’m not sure about 41. So I would go with B, but I’m not for sure.

Please answer all questions

Answers

Tank A that’s all I know

The weight of the square is 10 grams
how much heavier is the circle then the triangle
Will be marked BRAINLIEST

Answers

Answer:

The circle is 2 times heavier than the triangle.

Step-by-step explanation:

We can see this by identifying the amount of squares there are per shape.

Since there are 3 triangles and 3 circles on each side, we can identify how heavy each one is by comparing them to the squares.

There are 2 squares per triangle and 1 square per circle, so we know that the circles are 2 times heavier than the triangles.

The weight of the circle is 10 grams heavier than the weight of the triangle.

What is the solution to the equation?

In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.

The weight of the square is 10 grams. Let 'x' and 'y' be the weight of the triangle and circle. Then the equation is given as,

x + 20 + x + 20 + x + 20 = y + 10 + y + 10 + y + 10

Simplify the expression, then we have

x + 20 + x + 20 + x + 20 = y + 10 + y + 10 + y + 10

3x + 60 = 3y + 30

x + 20 = y + 10

y = x + 10

The weight of the circle is 10 grams heavier than the weight of the triangle.

More about the solution of the equation link is given below.

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Mu is walking laps to raise money for charity. For each lap she walks, her sponsors will donate $7. Mu has walked l laps and raised a total of $150

Write an equation to describe this situation.

Answers

Answer:

7[tex]l[/tex]=150

Step-by-step explanation:

Each lap is worth $7, so if Mu walked [tex]l[/tex] laps and the total is $150, then the equation would be

7[tex]l[/tex]=150

7l=$150
l= 21.82 so mu would have to walk 22 laps to make $154 ; 21 laps would only make $147 . And there is no such thing as 21.82 laps .
However if you only needed the equation it is 7l=150

.On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album. What caller number will receive both

Answers

Hello!
Let’s write out the multiples of 12 and 16.
12: 12,24,36,48,60,72
16: 16,32,48,64,80,96
Since 48 is in both, caller number 48 will get both

The caller number will receive both would be 48.

What is Least common multiple?

The Least common multiple of two or more numbers are the smallest number that is multiple of two or more numbers.

Given that;

On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album.

Now,

Since, On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album.

Hence, The common caller number is find by calculating the LCM of 12 and 16.

⇒ LCM of 12 and 16 = 48

Thus, The common caller number which receive both will be 48.

Learn more about the Least common multiple visit:

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Pleeeeez help thank you

Answers

Answer:

C

Step-by-step explanation:

The book at store A is $13.

5% tax means you pay 5 cents extra per dollar.

13*5= 65.

So so far your total is $13.65

The shipping fee is $3

$3+$13.65= $16.65

The book at store B is 15% off, with no extra charge

%15 of $19 is 2.85.

19-2.85 is 16.15

pls brainliest

i rushed at the end

C^^^^^^^^ yup it’s c

I Will Give Brainliest Pls Hurry Asap Help!

Answers

Answer:

300

Step-by-step explanation:

100 is for 4. 300 is for 12, and 280 is for x. All you have to do is rotate the shape to make it fit.

Please mark as brainliest

c.) 300 is the answer

helllpp?!?

plzz do all of themand youuu get branlist!!!! and a thank you!!!

_______________________________________________________
1. Minds On: Theme Proportional Reasoning
How much are 5 dozens?

( the pic)

Do you know what a ratio table is?
Here is one sample for you.

______________________________________________
2. Action:
Read this problem 2-3 times and think about how you can solve this problem using the ratio table.
Problem:
A recipe that makes 5 dozen cookies
You need 4 eggs and 2 cups of flour.

Wolfgang has only 3 eggs.
How much flour should he use?

How many cookies can he make?
How much of each ingredient would he need to make 75 cookies?
Here is one started for you.

( the pic)


3. Consolidation
Write another problem and ask a friend to solve it.


(plzz help me on this one too!!!)

Answers

For 1Minds on, I think 5 dozen is 60. You need to do 5 x 12 since one dozen equal to 12
A dozen is 12. 12x5=60. 60 is your answer

Plz help i need to finish this quiz in 10 mins!

Answers

Answer:

(1,2)

Step-by-step explanation:

(2, 1)

Explaination: x=2 y=1

Holly, Chris and Tony each collect action figures. Chris has twice as many action figures as Holly Holly has 3 fewer action figures than Tony. Create an expression that represents the number of action figures Chris has in terms of the number of action figures Tony has, t.

Answers

Answer:

Step-by-step explanation:

3-t

3-T I’ve done this question before

If a triangle has a base of 64 m and a height of 7.3 m then what is the area of the triangle? please show your work!

Answers

area is base x height over 2
64 x 7.3 = 467.2
467.2/2 = 233.6
the area is 233.6m^2

Answer:

233.6m²

Step-by-step explanation:

Area of a triangle formula:

[tex]A = \frac{(h)(b)}{2}[/tex]

Plug in the numbers:

A = 7.3*64/2

A = 233.6m²

can u help me...............

Answers

Answer:2.4

Step-by-step explanation:

Answer:

2.4

Step-by-step explanation:

I got this anwer because If 2.36 round up It will be 2.4 because Think of it that To round 2.36 to the nearest tenth consider the hundredths’ value of 2.36, which is 6 and equal or more than 5.

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